Update README.md, add screenshots, supported products

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/

FrappeMocha.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{04AB5523-E679-4628-8B8B-B928A5DA5107}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>FrappeMocha</RootNamespace>
+    <AssemblyName>FrappeMocha</AssemblyName>
+    <TargetFrameworkVersion>v3.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>Resources\logo.ico</ApplicationIcon>
+  </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject>
+    </StartupObject>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Keygen\KeygenBase.cs" />
+    <Compile Include="Keygen\KeygenProduct.cs" />
+    <Compile Include="Keygen\LicenseTypes.cs" />
+    <Compile Include="Keygen\Platforms\PlatformAndroid.cs" />
+    <Compile Include="Keygen\Platforms\PlatformJava.cs" />
+    <Compile Include="Keygen\Platforms\PlatformJavaScript.cs" />
+    <Compile Include="Keygen\Platforms\PlatformMac.cs" />
+    <Compile Include="Keygen\Platforms\PlatformWindows.cs" />
+    <Compile Include="FrmMain.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="FrmMain.Designer.cs">
+      <DependentUpon>FrmMain.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="FrmMain.resx">
+      <DependentUpon>FrmMain.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+      <DesignTime>True</DesignTime>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Resources\logo.ico" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

FrappeMocha.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.1022
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FrappeMocha", "FrappeMocha.csproj", "{04AB5523-E679-4628-8B8B-B928A5DA5107}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PlatformUnitTests", "PlatformUnitTests\PlatformUnitTests.csproj", "{CEF3A8CA-7FAA-416F-A1FD-2AB221A84AF8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CEF3A8CA-7FAA-416F-A1FD-2AB221A84AF8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CEF3A8CA-7FAA-416F-A1FD-2AB221A84AF8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CEF3A8CA-7FAA-416F-A1FD-2AB221A84AF8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CEF3A8CA-7FAA-416F-A1FD-2AB221A84AF8}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0125FC47-F477-4F21-BE83-56EF1850412D}
+	EndGlobalSection
+EndGlobal

FrmMain.Designer.cs

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+namespace FrappeMocha
+{
+    partial class FrmMain
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region PlatformWindows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FrmMain));
+            this.cbxLicenseType = new System.Windows.Forms.ComboBox();
+            this.tbxCompanyUserName = new System.Windows.Forms.TextBox();
+            this.lblLicenseType = new System.Windows.Forms.Label();
+            this.lblCompanyUserName = new System.Windows.Forms.Label();
+            this.lblLicenseKey = new System.Windows.Forms.Label();
+            this.tbxLicenseKey = new System.Windows.Forms.TextBox();
+            this.btnSubmit = new System.Windows.Forms.Button();
+            this.lblProduct = new System.Windows.Forms.Label();
+            this.cbxProduct = new System.Windows.Forms.ComboBox();
+            this.lblPlatform = new System.Windows.Forms.Label();
+            this.cbxPlatform = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // cbxLicenseType
+            // 
+            this.cbxLicenseType.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.cbxLicenseType.FormattingEnabled = true;
+            this.cbxLicenseType.Items.AddRange(new object[] {
+            "Company License",
+            "Single User License"});
+            this.cbxLicenseType.Location = new System.Drawing.Point(12, 112);
+            this.cbxLicenseType.Name = "cbxLicenseType";
+            this.cbxLicenseType.Size = new System.Drawing.Size(146, 21);
+            this.cbxLicenseType.TabIndex = 0;
+            this.cbxLicenseType.SelectedIndexChanged += new System.EventHandler(this.cbxLicenseType_SelectedIndexChanged);
+            // 
+            // tbxCompanyUserName
+            // 
+            this.tbxCompanyUserName.Location = new System.Drawing.Point(12, 152);
+            this.tbxCompanyUserName.MaxLength = 80;
+            this.tbxCompanyUserName.Name = "tbxCompanyUserName";
+            this.tbxCompanyUserName.Size = new System.Drawing.Size(146, 20);
+            this.tbxCompanyUserName.TabIndex = 1;
+            this.tbxCompanyUserName.Text = "FrappeMocha";
+            // 
+            // lblLicenseType
+            // 
+            this.lblLicenseType.AutoSize = true;
+            this.lblLicenseType.Location = new System.Drawing.Point(9, 96);
+            this.lblLicenseType.Name = "lblLicenseType";
+            this.lblLicenseType.Size = new System.Drawing.Size(71, 13);
+            this.lblLicenseType.TabIndex = 2;
+            this.lblLicenseType.Text = "License Type";
+            // 
+            // lblCompanyUserName
+            // 
+            this.lblCompanyUserName.AutoSize = true;
+            this.lblCompanyUserName.Location = new System.Drawing.Point(9, 136);
+            this.lblCompanyUserName.Name = "lblCompanyUserName";
+            this.lblCompanyUserName.Size = new System.Drawing.Size(115, 13);
+            this.lblCompanyUserName.TabIndex = 3;
+            this.lblCompanyUserName.Text = "Company / User Name";
+            // 
+            // lblLicenseKey
+            // 
+            this.lblLicenseKey.AutoSize = true;
+            this.lblLicenseKey.Location = new System.Drawing.Point(9, 175);
+            this.lblLicenseKey.Name = "lblLicenseKey";
+            this.lblLicenseKey.Size = new System.Drawing.Size(65, 13);
+            this.lblLicenseKey.TabIndex = 4;
+            this.lblLicenseKey.Text = "License Key";
+            // 
+            // tbxLicenseKey
+            // 
+            this.tbxLicenseKey.Location = new System.Drawing.Point(12, 191);
+            this.tbxLicenseKey.Name = "tbxLicenseKey";
+            this.tbxLicenseKey.ReadOnly = true;
+            this.tbxLicenseKey.Size = new System.Drawing.Size(146, 20);
+            this.tbxLicenseKey.TabIndex = 5;
+            this.tbxLicenseKey.Click += new System.EventHandler(this.tbxLicenseKey_Click);
+            // 
+            // btnSubmit
+            // 
+            this.btnSubmit.Location = new System.Drawing.Point(12, 222);
+            this.btnSubmit.Name = "btnSubmit";
+            this.btnSubmit.Size = new System.Drawing.Size(146, 23);
+            this.btnSubmit.TabIndex = 6;
+            this.btnSubmit.Text = "Frappe Mocha";
+            this.btnSubmit.UseVisualStyleBackColor = true;
+            this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click);
+            // 
+            // lblProduct
+            // 
+            this.lblProduct.AutoSize = true;
+            this.lblProduct.Location = new System.Drawing.Point(9, 56);
+            this.lblProduct.Name = "lblProduct";
+            this.lblProduct.Size = new System.Drawing.Size(44, 13);
+            this.lblProduct.TabIndex = 7;
+            this.lblProduct.Text = "Product";
+            // 
+            // cbxProduct
+            // 
+            this.cbxProduct.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.cbxProduct.FormattingEnabled = true;
+            this.cbxProduct.Location = new System.Drawing.Point(12, 72);
+            this.cbxProduct.Name = "cbxProduct";
+            this.cbxProduct.Size = new System.Drawing.Size(146, 21);
+            this.cbxProduct.TabIndex = 8;
+            this.cbxProduct.SelectedIndexChanged += new System.EventHandler(this.cbxProduct_SelectedIndexChanged);
+            // 
+            // lblPlatform
+            // 
+            this.lblPlatform.AutoSize = true;
+            this.lblPlatform.Location = new System.Drawing.Point(9, 13);
+            this.lblPlatform.Name = "lblPlatform";
+            this.lblPlatform.Size = new System.Drawing.Size(45, 13);
+            this.lblPlatform.TabIndex = 9;
+            this.lblPlatform.Text = "Platform";
+            // 
+            // cbxPlatform
+            // 
+            this.cbxPlatform.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.cbxPlatform.FormattingEnabled = true;
+            this.cbxPlatform.Location = new System.Drawing.Point(12, 29);
+            this.cbxPlatform.Name = "cbxPlatform";
+            this.cbxPlatform.Size = new System.Drawing.Size(146, 21);
+            this.cbxPlatform.TabIndex = 10;
+            this.cbxPlatform.SelectedIndexChanged += new System.EventHandler(this.cbxPlatform_SelectedIndexChanged);
+            // 
+            // FrmMain
+            // 
+            this.AcceptButton = this.btnSubmit;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.SystemColors.Window;
+            this.ClientSize = new System.Drawing.Size(173, 258);
+            this.Controls.Add(this.cbxPlatform);
+            this.Controls.Add(this.lblPlatform);
+            this.Controls.Add(this.cbxProduct);
+            this.Controls.Add(this.lblProduct);
+            this.Controls.Add(this.btnSubmit);
+            this.Controls.Add(this.tbxLicenseKey);
+            this.Controls.Add(this.lblLicenseKey);
+            this.Controls.Add(this.lblCompanyUserName);
+            this.Controls.Add(this.lblLicenseType);
+            this.Controls.Add(this.tbxCompanyUserName);
+            this.Controls.Add(this.cbxLicenseType);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.KeyPreview = true;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "FrmMain";
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
+            this.Text = "FrappeMocha";
+            this.Shown += new System.EventHandler(this.frmMain_Shown);
+            this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.frmMain_KeyPress);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.ComboBox cbxLicenseType;
+        private System.Windows.Forms.TextBox tbxCompanyUserName;
+        private System.Windows.Forms.Label lblLicenseType;
+        private System.Windows.Forms.Label lblCompanyUserName;
+        private System.Windows.Forms.Label lblLicenseKey;
+        private System.Windows.Forms.TextBox tbxLicenseKey;
+        private System.Windows.Forms.Button btnSubmit;
+        private System.Windows.Forms.Label lblProduct;
+        private System.Windows.Forms.ComboBox cbxProduct;
+        private System.Windows.Forms.Label lblPlatform;
+        private System.Windows.Forms.ComboBox cbxPlatform;
+    }
+}
+

Keygen/KeygenBase.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Text;
+
+namespace FrappeMocha.Keygen
+{
+    public abstract class KeygenBase
+    {
+        public const string CompanyLicense = "Company License";
+        public const string SingleUserLicense = "Single User License";
+
+        protected string Platform;
+        protected int ByteEncoding = 0;
+        public List<KeygenProduct> Products = new List<KeygenProduct>();
+
+        public abstract string Generate(int type, string paramCompany, LicenseTypes license);
+        public abstract bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license);
+
+
+        public virtual List<string> GenerateLicencetypes(KeygenProduct p)
+        {
+            List<string> licenses = new List<string>();
+            licenses.Add(CompanyLicense);
+            licenses.Add(SingleUserLicense);
+            return licenses;
+        }
+
+        public override string ToString()
+        {
+            return Platform;
+        }
+
+        public byte[] StrToByteArray(string str)
+        {
+            try
+            {
+                return Encoding.GetEncoding(this.ByteEncoding).GetBytes(str);
+            }
+            catch (Exception)
+            {
+                try
+                {
+                    return Encoding.GetEncoding(0).GetBytes(str);
+                }
+                catch (Exception)
+                {
+                    return new byte[1] { (byte)63 };
+                }
+            }
+        }
+
+        public string ByteArrayToStr(byte[] barr, int index, int length)
+        {
+            try
+            {
+                return Encoding.GetEncoding(this.ByteEncoding).GetString(barr, index, length);
+            }
+            catch (Exception)
+            {
+                try
+                {
+                    return Encoding.GetEncoding(0).GetString(barr, index, length);
+                }
+                catch (Exception)
+                {
+                    return "?";
+                }
+            }
+        }
+    }
+}

Keygen/KeygenProduct.cs

@@ -0,0 +1,35 @@
+using System.Collections.Generic;
+
+namespace FrappeMocha.Keygen
+{
+    public class KeygenProduct
+    {
+        public LicenseTypes Licence;
+        public string Description;
+
+        public KeygenProduct(LicenseTypes licence, string description, string platform)
+        {
+            Licence = licence;
+            Description = description + " for " + platform;
+        }
+
+        public override string ToString()
+        {
+            return Description;
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is KeygenProduct product && Description == product.Description || 
+                   obj is string description && description == Description;
+        }
+
+        public override int GetHashCode()
+        {
+            var hashCode = -1651123971;
+            hashCode = hashCode * -1521134295 + Licence.GetHashCode();
+            hashCode = hashCode * -1521134295 + EqualityComparer<string>.Default.GetHashCode(Description);
+            return hashCode;
+        }
+    }
+}

Keygen/LicenseTypes.cs

@@ -0,0 +1,30 @@
+namespace FrappeMocha.Keygen
+{
+    public enum LicenseTypes
+    {
+        Windows3270 = 0x8c,
+        Windows5250 = 0x80,
+        Windows3812 = 0xa0,
+        WindowsTelnet = 0x9b,
+
+        Java3270 = 0x1b + 2,
+        Java5250 = 0x1b + 2,
+        JavaTelnet = 0x1b,
+
+        Mac3270 = 0x5d,
+        Mac5250 = 0x16,
+        Mac3812 = 0x22,
+        MacTelnet = 0x5e,
+        MacKeyboard = 0xa5,
+
+        JavaScript3270 = 0xb3,
+        JavaScript5250 = 0xb2,
+        JavaScriptTelnet = 0xb4,
+
+        Android3270 = 0x94,
+        Android5250 = 0x91,
+        AndroidTelnet = 0x96,
+        AndroidVnc = 0x92,
+        AndroidBarcode = 0x9c,
+    }
+}

Keygen/Platforms/PlatformAndroid.cs

@@ -0,0 +1,101 @@
+using System;
+
+namespace FrappeMocha.Keygen.Platforms
+{
+    public class PlatformAndroid : KeygenBase
+    {
+        public PlatformAndroid()
+        {
+            Platform = "Android";
+            Products.Add(new KeygenProduct(LicenseTypes.Android3270, "TN3270", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Android5250, "TN5250", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.AndroidTelnet, "TN3812", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.AndroidVnc, "VNC", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.AndroidBarcode, "Barcode", Platform));
+        }
+
+        /**
+         * This was also a piece of cake since PlatformJava is the underlying tech on PlatformAndroid
+         * The Dex object engine keept pretty good tabs on the types and var names as well!
+         */
+        public override string Generate(int itype, string paramCompany, LicenseTypes license)
+        {
+            char type = (char)(itype + '0');
+            string paramLicencekey = type.ToString();
+            long sum = 0;
+            byte[] byteArray = StrToByteArray(paramCompany);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((long)byteArray[index] >= 'A' && (long)byteArray[index] <= 'Z')
+                    byteArray[index] += 32; // this is basically str.toLower()
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong)byteArray[index] >= 'A' && (ulong)byteArray[index] <= 'z')
+                {
+                    sum += byteArray[index] + (uint)license;
+                }
+            }
+            sum = sum * paramLicencekey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            if (sum < 100U)
+                sum = 2728U;
+
+            paramLicencekey = (paramLicencekey[0].ToString() + sum) + '-' +
+                           (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
+
+            return paramLicencekey;
+        }
+
+        /**
+         * Straight outta da Dex
+         */
+        public override bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license)
+        {
+            byte[] bArr = new byte[255];
+            byte[] bArr2 = new byte[255];
+            if (paramCompany.Length < 2 || paramLicenseKey.Length < 2)
+            {
+                return false;
+            }
+            for (int i = 0; i < paramLicenseKey.Length; i++)
+            {
+                bArr2[i] = (byte)paramLicenseKey[i];
+            }
+            for (int i2 = 0; i2 < paramCompany.Length; i2++)
+            {
+                bArr[i2] = (byte)paramCompany[i2];
+                if (paramCompany[i2] >= 'A' && paramCompany[i2] <= 'Z')
+                {
+                    bArr[i2] = (byte)(bArr[i2] + 32);
+                }
+            }
+            long j = 0;
+            for (int i3 = 0; i3 < paramCompany.Length; i3++)
+            {
+                if (bArr[i3] >= 65 && bArr[i3] <= 122)
+                {
+                    j += (bArr[i3] + (long)license);
+                }
+            }
+            long j2 = j * bArr2[0];
+            long j3 = (j2 * (j2 & 255)) & 65535;
+            if (j3 < 100)
+            {
+                j3 = 2728;
+            }
+            string sb = "";
+            sb += paramLicenseKey[0];
+            sb += (object)j3;
+            if (paramLicenseKey.StartsWith(sb))
+            {
+                // lictype = bArr2[0] - 48;
+                // is_lite2 = false;
+                return true;
+            }
+            // lictype = -1;
+            return false;
+        }
+    }
+}

Keygen/Platforms/PlatformJava.cs

@@ -0,0 +1,94 @@
+using System.Collections.Generic;
+
+namespace FrappeMocha.Keygen.Platforms
+{
+    public class PlatformJava : KeygenBase
+    {
+        public PlatformJava()
+        {
+            Platform = "Java";
+            Products.Add(new KeygenProduct(LicenseTypes.Java3270, "TN3270", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Java5250, "TN5250", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.JavaTelnet, "Telnet", Platform));
+        }
+
+        public override List<string> GenerateLicencetypes(KeygenProduct p)
+        {
+            List<string> types = new List<string>();
+            for (int i = 0; i < 5; i++)
+            {
+                types.Add(((char)(i + 'A')).ToString());
+            }
+            return types;
+        }
+
+        /**
+         * Pretty stright forward implementation as well
+         * .NET is just a copy of PlatformJava afterall
+         */
+        public override string Generate(int itype, string paramCompany, LicenseTypes license)
+        {
+            char type = (char)(itype + 'A');
+            string paramLicencekey = type.ToString() + '@';
+            int sum = 0;
+
+            int i = 0;
+            while (i < paramCompany.Length)
+            {
+                if (paramCompany[i] > ' ')
+                {
+                    // 3270 and 5250 have a hardcoded 0x1b+2 here, we've just added it to the enum
+                    sum += paramCompany[i] + (int)license;
+                }
+                ++i;
+            }
+
+            sum = sum * paramLicencekey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            paramLicencekey += sum.ToString();
+            return paramLicencekey;
+        }
+
+        /**
+         * Straight outta da JAR
+         */
+        public override bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license)
+        {
+            int i = 0;
+            int n = 0;
+            while (i < paramCompany.Length)
+            {
+                if (paramCompany[i] > ' ')
+                {
+                    // 3270 and 5250 have a hardcoded 0x1b+2 here, we've just added it to the enum
+                    n += paramCompany[i] + (int)license;
+                }
+                ++i;
+            }
+            if (paramLicenseKey.Length > 0)
+            {
+                switch (paramLicenseKey[0])
+                {
+                    case 'A':
+                    case 'B':
+                    case 'C':
+                    case 'D':
+                    case 'E':
+                        break;
+
+                    default:
+                        return false;
+                }
+                int n2 = n * paramLicenseKey[0];
+                n2 = n2 * (n2 & 0xFF) & 0xFFFF;
+
+                string check = paramLicenseKey[0].ToString() + paramLicenseKey[1].ToString() + n2.ToString();
+                if (paramLicenseKey[1] == '@' && check == paramLicenseKey)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}

Keygen/Platforms/PlatformJavaScript.cs

@@ -0,0 +1,83 @@
+using System;
+
+namespace FrappeMocha.Keygen.Platforms
+{
+    public class PlatformJavaScript : KeygenBase
+    {
+        public PlatformJavaScript()
+        {
+            Platform = "Google Chrome";
+            Products.Add(new KeygenProduct(LicenseTypes.JavaScript3270, "TN3270", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.JavaScript5250, "TN5250", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.JavaScriptTelnet, "Telnet", Platform));
+        }
+
+        /**
+         * This one was fun as well
+         * Found out that the license must end with "45" in order to validate
+         */
+        public override string Generate(int itype, string paramCompany, LicenseTypes license)
+        {
+            char type = (char)(itype + '0');
+            string param_lickey = type.ToString();
+            ulong sum = 0;
+            byte[] byteArray = StrToByteArray(paramCompany);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (byteArray[index] >= 'A' && byteArray[index] <= 'Z')
+                    byteArray[index] += 32; // ASCII 'Space'
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong)byteArray[index] >= 'A' && (ulong)byteArray[index] <= 'z')
+                {
+                    sum += byteArray[index] + (uint)license;
+                }
+            }
+            sum = sum * param_lickey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            if (sum < 100U)
+                sum = 2728U;
+
+            param_lickey = (param_lickey[0].ToString() + sum) + '-' +
+                           (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds
+                           + "45"; // a little salt, as a treat
+
+            return param_lickey;
+        }
+
+        /**
+         * Straight outta da JS
+         */
+        public override bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license)
+        {
+            ulong sum = 0;
+            byte[] byteArray = this.StrToByteArray(paramCompany);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong)byteArray[index] >= 65 && (ulong)byteArray[index] <= 90)
+                    byteArray[index] += 32;
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong)byteArray[index] >= 65 && (ulong)byteArray[index] <= 122)
+                {
+                    sum += byteArray[index] + (uint)license;
+                }
+            }
+            sum = sum * paramLicenseKey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            if (sum < 100U)
+                sum = 2728U;
+
+            if (!paramLicenseKey.StartsWith(paramLicenseKey[0].ToString() + sum) || !paramLicenseKey.EndsWith("45"))
+            {
+                return false;
+            }
+
+            return true;
+        }
+    }
+}

Keygen/Platforms/PlatformMac.cs

@@ -0,0 +1,140 @@
+using System.Collections.Generic;
+
+namespace FrappeMocha.Keygen.Platforms
+{
+    public class PlatformMac : KeygenBase
+    {
+        public PlatformMac()
+        {
+            Platform = "MacOSX";
+            Products.Add(new KeygenProduct(LicenseTypes.Mac3270, "TN3270", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Mac5250, "TN5250", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Mac3812, "TN3812", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.MacTelnet, "Telnet", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.MacKeyboard, "Keyboard", Platform));
+        }
+
+        public override List<string> GenerateLicencetypes(KeygenProduct p)
+        {
+            if (p.Licence != LicenseTypes.Mac3812 &&
+                p.Licence != LicenseTypes.MacTelnet &&
+                p.Licence != LicenseTypes.MacKeyboard)
+            {
+                return base.GenerateLicencetypes(p);
+            }
+            List<string> types = new List<string>();
+            types.Add("0");
+            return types;
+        }
+
+        public override string Generate(int type, string paramCompany, LicenseTypes license)
+        {
+            switch (license)
+            {
+                // Prefix Num
+                case LicenseTypes.Mac3270:
+                case LicenseTypes.Mac5250:
+                    return GeneratePrefixNumber(type, paramCompany, license);
+                
+                // Prefix Alpha
+                case LicenseTypes.Mac3812:
+                case LicenseTypes.MacTelnet:
+                case LicenseTypes.MacKeyboard:
+                    return GeneratePrefixAlpha(type, paramCompany, license);
+            }
+            return "";
+        }
+
+        /**
+         * @todo: write some sanity checks
+         * I doubt I'll be able to get something straight outta da Ghidra here...
+         */
+        public override bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license)
+        {
+            switch (license)
+            {
+                // Prefix Num
+                case LicenseTypes.Mac3270:
+                case LicenseTypes.Mac5250:
+                    return true;
+
+                // Prefix Alpha
+                case LicenseTypes.Mac3812:
+                case LicenseTypes.MacTelnet:
+                case LicenseTypes.MacKeyboard:
+                    return true;
+            }
+            return false;
+        }
+
+
+        /**
+         * Now the fun stuff..
+         * 
+         * Beware! the PlatformMac versions rely on datatype truncation
+         * It's a real pain in the ass to make sure the datatypes are all accurate
+         */
+        public string GeneratePrefixAlpha(int itype, string param_company, LicenseTypes license)
+        {
+            // must start with an 'a' or 'b;
+            char type = (char)(itype + (int)'a');
+            string param_lickey = type.ToString();
+            ushort sum = 0;
+
+            for (int b = 0; b < param_company.Length; b++)
+            {
+                if (param_company[b] >= 0x21)
+                    sum += (ushort)(param_company[b] + license);
+            }
+
+            sum = (ushort)(sum * (short)param_lickey[0]);
+            param_lickey += (ushort)((sum & byte.MaxValue) * sum);
+            return param_lickey;
+        }
+
+        /**
+         * Beware! the PlatformMac versions rely on datatype truncation
+         * It's a real pain in the ass to make sure the datatypes are all accurate
+         * 
+         * There's a special case for the MacKeyboard as it deviates from the rest of the algoritm
+         * The (byte) cast is extmely important
+         */
+        public string GeneratePrefixNumber(int itype, string param_company, LicenseTypes license)
+        {
+            char type = (char)(itype + (int)'0');
+            string param_lickey = type.ToString();
+            uint num1 = 0;
+            byte[] byteArray = StrToByteArray(param_company);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (license == LicenseTypes.MacKeyboard && (byte)(byteArray[index] + 0xbf) < 0x1a)
+                {
+                    byteArray[index] += 32;
+                }
+                else if (license != LicenseTypes.MacKeyboard && byteArray[index] + 0xbf < 0x1a)
+                {
+                    byteArray[index] += 32;
+                }
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (byteArray[index] >= 0x41) // 'A'
+                    num1 += byteArray[index] + (uint)license;
+            }
+
+            uint num2 = (uint)(num1 * (int)param_lickey[0]);
+            num2 = (num2 * (num2 & byte.MaxValue) & ushort.MaxValue);
+            ulong num3 = 0xaa8;
+            if (99 < num2)
+            {
+                num3 = num2;
+            }
+
+            param_lickey = param_lickey[0].ToString() + num3;
+
+
+            return param_lickey;
+        }
+    }
+}

Keygen/Platforms/PlatformWindows.cs

@@ -0,0 +1,81 @@
+using System;
+
+namespace FrappeMocha.Keygen.Platforms
+{
+    public class PlatformWindows : KeygenBase
+    {
+        public PlatformWindows()
+        {
+            Platform = "Windows";
+            Products.Add(new KeygenProduct(LicenseTypes.Windows3270, "TN3270", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Windows5250, "TN5250", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.Windows3812, "TN3812", Platform));
+            Products.Add(new KeygenProduct(LicenseTypes.WindowsTelnet, "Telnet", Platform));
+        }
+        
+        public override string Generate(int type, string paramCompany, LicenseTypes license)
+        {
+            string licenseKey = type.ToString();
+            uint sum = 0;
+            byte[] byteArray = StrToByteArray(paramCompany);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (byteArray[index] >= 'A' && byteArray[index] <= 'Z')
+                    byteArray[index] += 32; // ASCII 'Space'
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (byteArray[index] >= 'A')
+                    sum += byteArray[index] + (uint)license;
+            }
+            sum = sum * licenseKey[0];
+            sum = (uint)((int)sum * ((int)sum & byte.MaxValue) & ushort.MaxValue);
+            if (sum < 100U)
+                sum = 2728U;
+
+            licenseKey = (licenseKey[0].ToString() + sum) + '-' +
+                           (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
+
+
+            return licenseKey;
+        }
+
+        /**
+         * Straight outta da Assembley
+         */
+        public override bool Check(string paramLicenseKey, string paramCompany, LicenseTypes license)
+        {
+            uint num1 = 0;
+            if (paramCompany == null || paramCompany.Length < 2)
+                return false;
+            byte[] byteArray = this.StrToByteArray(paramCompany);
+            if (paramLicenseKey == null || paramLicenseKey.Length < 6)
+                return false;
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                // >= 'A' && <= 'Z'
+                if ((int)byteArray[index] >= 65 && (int)byteArray[index] <= 90)
+                    byteArray[index] += (byte)32;
+            }
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((int)byteArray[index] >= 65) // 'A'
+                    num1 += (uint)byteArray[index] + (uint)license;
+            }
+            uint num2 = num1 * (uint)paramLicenseKey[0];
+            uint num3 = (uint)((int)num2 * ((int)num2 & (int)byte.MaxValue) & (int)ushort.MaxValue);
+            if (num3 < 100U)
+                num3 = 2728U;
+
+            if (paramLicenseKey.StartsWith((paramLicenseKey[0].ToString() ?? "") + (object)num3))
+            {
+                //this.aa = param_lickey.Substring(0, 1);
+                return true;
+            }
+            //this.aa = "";
+            return false;
+        }
+    }
+}

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Amrit Panesar
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

PlatformUnitTests/PlatformUnitTest.cs

@@ -0,0 +1,104 @@
+using System.Reflection;
+using FrappeMocha.Keygen;
+using FrappeMocha.Keygen.Platforms;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace PlatformUnitTests
+{
+    [TestClass]
+    public class PlatformUnitTest
+    {
+        private KeygenBase platform;
+        private readonly string[] _testCompanyUserStrings = {"Test", "FrappeMocha", "abcd", "1234"};
+
+        [TestMethod]
+        public void TestWindowsPlatform()
+        {
+            platform = new PlatformWindows();
+            foreach (var product in platform.Products)
+            {
+                var types = platform.GenerateLicencetypes(product);
+                for (int i = 0; i < types.Count; i++)
+                {
+                    foreach (string company in _testCompanyUserStrings)
+                    {
+                        var key = platform.Generate(i, company, product.Licence);
+                        Assert.IsTrue(platform.Check(key, company, product.Licence));
+                    }
+                }
+            }
+        }
+
+        [TestMethod]
+        public void TestMacOsxPlatform()
+        {
+            platform = new PlatformMac();
+            foreach (var product in platform.Products)
+            {
+                var types = platform.GenerateLicencetypes(product);
+                for (int i = 0; i < types.Count; i++)
+                {
+                    foreach (string company in _testCompanyUserStrings)
+                    {
+                        var key = platform.Generate(i, company, product.Licence);
+                        Assert.IsTrue(platform.Check(key, company, product.Licence));
+                    }
+                }
+            }
+        }
+
+        [TestMethod]
+        public void TestAndroidPlatform()
+        {
+            platform = new PlatformAndroid();
+            foreach (var product in platform.Products)
+            {
+                var types = platform.GenerateLicencetypes(product);
+                for (int i = 0; i < types.Count; i++)
+                {
+                    foreach (string company in _testCompanyUserStrings)
+                    {
+                        var key = platform.Generate(i, company, product.Licence);
+                        Assert.IsTrue(platform.Check(key, company, product.Licence));
+                    }
+                }
+            }
+        }
+
+        [TestMethod]
+        public void TestJavaPlatform()
+        {
+            platform = new PlatformJava();
+            foreach (var product in platform.Products)
+            {
+                var types = platform.GenerateLicencetypes(product);
+                for (int i = 0; i < types.Count; i++)
+                {
+                    foreach (string company in _testCompanyUserStrings)
+                    {
+                        var key = platform.Generate(i, company, product.Licence);
+                        Assert.IsTrue(platform.Check(key, company, product.Licence));
+                    }
+                }
+            }
+        }
+
+        [TestMethod]
+        public void TestJavaScriptPlatform()
+        {
+            platform = new PlatformJavaScript();
+            foreach (var product in platform.Products)
+            {
+                var types = platform.GenerateLicencetypes(product);
+                for (int i = 0; i < types.Count; i++)
+                {
+                    foreach (string company in _testCompanyUserStrings)
+                    {
+                        var key = platform.Generate(i, company, product.Licence);
+                        Assert.IsTrue(platform.Check(key, company, product.Licence));
+                    }
+                }
+            }
+        }
+    }
+}

PlatformUnitTests/PlatformUnitTests.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+
+    <ApplicationIcon />
+
+    <OutputType>Library</OutputType>
+
+    <StartupObject />
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FrappeMocha.csproj" />
+  </ItemGroup>
+
+</Project>

Program.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+
+namespace FrappeMocha
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new FrmMain());
+        }
+    }
+}

Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("FrappeMocha")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("HP Inc.")]
+[assembly: AssemblyProduct("FrappeMocha")]
+[assembly: AssemblyCopyright("Copyright © HP Inc. 2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("04ab5523-e679-4628-8b8b-b928a5da5107")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Properties/Resources.Designer.cs

@@ -0,0 +1,73 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace FrappeMocha.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("FrappeMocha.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized resource of type System.Drawing.Icon similar to (Icon).
+        /// </summary>
+        internal static System.Drawing.Icon logo {
+            get {
+                object obj = ResourceManager.GetObject("logo", resourceCulture);
+                return ((System.Drawing.Icon)(obj));
+            }
+        }
+    }
+}

Properties/Resources.resx

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="logo" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\logo.ico;System.Drawing.Icon, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>

Properties/Settings.Designer.cs

@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace FrappeMocha.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

README.md

@@ -0,0 +1,30 @@
+# FrappeMocha
+
+<img src="https://neo-desktop.github.io/FrappeMocha/images/logo.png" height=100 />
+
+Generates keys for an aptly named 3270 terminal emulator
+
+![Main screen screenshot](https://neo-desktop.github.io/FrappeMocha/images/mainscreen.png)
+
+### Supported Platforms and Products
+Product  | Windows | MacOSX | Java | Chrome | Android
+-------- |:-------:|:------:|:----:|:------:|:-------:
+**TN3270**   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:
+**TN5250**   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:
+**Telnet**   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:
+**TN3812**   | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | ------ | :heavy_check_mark:
+**Keyboard**   | ------ | :heavy_check_mark: | ------  | ------  | ------ 
+**VNC**   | ------ | ------  | ------  | ------ | :heavy_check_mark: 
+**Barcode**   | ------ | ------  | ------  | ------ | :heavy_check_mark: 
+
+
+
+### Note
+This is mostly for educational purposes only
+Documentation is non-existant
+
+I just /really/ enjoy taking things apart and trying to put them back together
+
+If this helps someone, sweet!
+
+Keep on hacking

frmMain.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+using FrappeMocha.Keygen;
+using FrappeMocha.Keygen.Platforms;
+
+namespace FrappeMocha
+{
+    public partial class FrmMain : Form
+    {
+        private char[] ficus = new char[6];
+        private Dictionary<string, KeygenBase> keygens = new Dictionary<string, KeygenBase>();
+        private string[] platforms = {"Windows", "MacOSX", "Java", "Google Chrome", "Android"};
+        private string[] companyUserName = {"Company Name", "User Name"};
+
+        public FrmMain()
+        {
+            InitializeComponent();
+            keygens.Add(platforms[0], new PlatformWindows());
+            keygens.Add(platforms[1], new PlatformMac());
+            keygens.Add(platforms[2], new PlatformJava());
+            keygens.Add(platforms[3], new PlatformJavaScript());
+            keygens.Add(platforms[4], new PlatformAndroid());
+
+            foreach (var item in keygens)
+            {
+                cbxPlatform.Items.Add(item.Value);
+            }
+
+            cbxPlatform.SelectedIndex = 0;
+        }
+
+        private string keygen(KeygenBase platform, KeygenProduct product, int type, string name)
+        {
+            if (name.Length <= 1)
+            {
+                MessageBox.Show( companyUserName[type] + " must be longer than one character", "Error",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return "";
+            }
+
+            if (name.Length > 80)
+            {
+                MessageBox.Show( companyUserName[type] + " must not be greater than eighty characters", "Error",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return "";
+            }
+
+            string genlicense = platform.Generate(type, name, product.Licence);
+            if (!platform.Check(genlicense, name, product.Licence))
+            {
+                MessageBox.Show("Generated license did not pass self check, please try again", "Warning",
+                    MessageBoxButtons.OK,
+                    MessageBoxIcon.Warning);
+            }
+
+            return genlicense;
+        }
+
+        private void frmMain_Shown(object sender, EventArgs e)
+        {
+            AcceptButton.PerformClick();
+        }
+
+        private void frmMain_KeyPress(object sender, KeyPressEventArgs e)
+        {
+            Array.Copy(ficus, 1, ficus, 0, ficus.Length - 1);
+            this.ficus[ficus.Length - 1] = e.KeyChar;
+            if (new string(ficus) == "spicey")
+            {
+                switch (MessageBox.Show("Would you like a little salt, as a treat?", "Orly?",
+                    MessageBoxButtons.YesNoCancel,
+                    MessageBoxIcon.Question))
+                {
+                    case DialogResult.Yes:
+                        Process.Start("https://i.imgur.com/EJ31bmk.jpg");
+                        break;
+                    case DialogResult.No:
+                        Process.Start(
+                            "https://pics.me.me/white-people-cant-handle-spicy-food-um-try-again-sweetie-6626438.png");
+                        break;
+                    case DialogResult.Cancel:
+                        break;
+                }
+            }
+        }
+
+        private void btnSubmit_Click(object sender, EventArgs e)
+        {
+            KeygenBase platform = (KeygenBase)cbxPlatform.SelectedItem;
+            KeygenProduct product = (KeygenProduct)cbxProduct.SelectedItem;
+            int type = cbxLicenseType.SelectedIndex;
+            string name = tbxCompanyUserName.Text;
+
+            tbxLicenseKey.Text = keygen(platform, product, type, name);
+        }
+
+        private void tbxLicenseKey_Click(object sender, EventArgs e)
+        {
+            tbxLicenseKey.SelectAll();
+        }
+
+        private void cbxPlatform_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            KeygenBase platform = (KeygenBase) cbxPlatform.SelectedItem;
+
+            cbxProduct.Enabled = false;
+            cbxProduct.Items.Clear();
+            foreach (var p in platform.Products)
+            {
+                cbxProduct.Items.Add(p);
+            }
+            cbxProduct.SelectedIndex = 0;
+            cbxProduct.Enabled = true;
+        }
+
+        private void cbxProduct_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            KeygenBase platform = (KeygenBase)cbxPlatform.SelectedItem;
+            KeygenProduct product = (KeygenProduct) cbxProduct.SelectedItem;
+
+            cbxLicenseType.Enabled = false;
+            cbxLicenseType.Items.Clear();
+            var LicenceTypes = platform.GenerateLicencetypes(product);
+            foreach (string type in LicenceTypes)
+            {
+                cbxLicenseType.Items.Add(type);
+            }
+            cbxLicenseType.Enabled = true;
+            cbxLicenseType.SelectedIndex = 0;
+            AcceptButton.PerformClick();
+        }
+
+        private void cbxLicenseType_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (cbxLicenseType.Items.Count != 2)
+            {
+                lblCompanyUserName.Text = "Name";
+            }
+            else
+            {
+                lblCompanyUserName.Text = companyUserName[cbxLicenseType.SelectedIndex];
+            }
+            AcceptButton.PerformClick();
+        }
+
+    }
+}