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Creating Secure Trial Versions for .NET Applications - A Tutorial

, 16 Oct 2012 CPOL
Implement trial licensing model for your .NET applications with minimal costs
<?xml version="1.0" encoding="utf-8"?>
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    <ProjectGuid>{EF88E0FC-9D18-4612-B20A-97D7DC9A53B0}</ProjectGuid>
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    <StartupObject>SampleTrialAppVB.My.MyApplication</StartupObject>
    <RootNamespace>SampleTrialAppVB</RootNamespace>
    <AssemblyName>SampleTrialAppVB</AssemblyName>
    <FileAlignment>512</FileAlignment>
    <MyType>WindowsForms</MyType>
    <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
    <TargetFrameworkProfile>
    </TargetFrameworkProfile>
    <PublishUrl>publish\</PublishUrl>
    <Install>true</Install>
    <InstallFrom>Disk</InstallFrom>
    <UpdateEnabled>false</UpdateEnabled>
    <UpdateMode>Foreground</UpdateMode>
    <UpdateInterval>7</UpdateInterval>
    <UpdateIntervalUnits>Days</UpdateIntervalUnits>
    <UpdatePeriodically>false</UpdatePeriodically>
    <UpdateRequired>false</UpdateRequired>
    <MapFileExtensions>true</MapFileExtensions>
    <ApplicationRevision>0</ApplicationRevision>
    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
    <IsWebBootstrapper>false</IsWebBootstrapper>
    <UseApplicationTrust>false</UseApplicationTrust>
    <BootstrapperEnabled>true</BootstrapperEnabled>
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  <PropertyGroup>
    <OptionExplicit>On</OptionExplicit>
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  <PropertyGroup>
    <OptionCompare>Binary</OptionCompare>
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    <OptionStrict>Off</OptionStrict>
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  <PropertyGroup>
    <OptionInfer>On</OptionInfer>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
    <DebugSymbols>true</DebugSymbols>
    <DefineDebug>true</DefineDebug>
    <DefineTrace>true</DefineTrace>
    <OutputPath>..\bin\Debug\</OutputPath>
    <DocumentationFile>SampleTrialAppVB.xml</DocumentationFile>
    <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn>
    <DebugType>full</DebugType>
    <PlatformTarget>AnyCPU</PlatformTarget>
    <CodeAnalysisIgnoreBuiltInRuleSets>true</CodeAnalysisIgnoreBuiltInRuleSets>
    <CodeAnalysisIgnoreBuiltInRules>true</CodeAnalysisIgnoreBuiltInRules>
    <CodeAnalysisFailOnMissingRules>true</CodeAnalysisFailOnMissingRules>
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  </PropertyGroup>
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    <SignAssembly>false</SignAssembly>
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  <PropertyGroup>
    <AssemblyOriginatorKeyFile>
    </AssemblyOriginatorKeyFile>
  </PropertyGroup>
  <Choose>
    <When Condition=" '$(ConfigurationName)'=='Debug' ">
      <ItemGroup>
        <Reference Include="Licensing.Net, Version=1.0.0.0, Culture=neutral, PublicKeyToken=6b789b4f1459fe6f, processorArchitecture=MSIL">
          <SpecificVersion>False</SpecificVersion>
          <HintPath>..\..\..\bin\Managed\Debug\Licensing.Net.dll</HintPath>
        </Reference>
      </ItemGroup>
    </When>
    <Otherwise />
  </Choose>
  <ItemGroup>
    <Reference Include="Licensing.Net">
      <HintPath>..\Tools\LicensingService\bin\Licensing.Net.dll</HintPath>
    </Reference>
    <Reference Include="System" />
    <Reference Include="System.Drawing" />
    <Reference Include="System.Windows.Forms" />
    <Reference Include="System.Xml" />
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  <ItemGroup>
    <Import Include="Microsoft.VisualBasic" />
    <Import Include="System" />
    <Import Include="System.Collections" />
    <Import Include="System.Collections.Generic" />
    <Import Include="System.Drawing" />
    <Import Include="System.Diagnostics" />
    <Import Include="System.Windows.Forms" />
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  <ItemGroup>
    <Compile Include="AppSettings.vb" />
    <Compile Include="ClockManipulationDetector.vb" />
    <Compile Include="MainForm.Designer.vb">
      <DependentUpon>MainForm.vb</DependentUpon>
    </Compile>
    <Compile Include="MainForm.vb">
      <SubType>Form</SubType>
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    <Compile Include="My Project\AssemblyInfo.vb" />
    <Compile Include="My Project\Application.Designer.vb">
      <AutoGen>True</AutoGen>
      <DependentUpon>Application.myapp</DependentUpon>
    </Compile>
    <Compile Include="My Project\Resources.Designer.vb">
      <AutoGen>True</AutoGen>
      <DesignTime>True</DesignTime>
      <DependentUpon>Resources.resx</DependentUpon>
    </Compile>
    <Compile Include="My Project\Settings.Designer.vb">
      <AutoGen>True</AutoGen>
      <DependentUpon>Settings.settings</DependentUpon>
      <DesignTimeSharedInput>True</DesignTimeSharedInput>
    </Compile>
    <Compile Include="ActivationForm.Designer.vb">
      <DependentUpon>ActivationForm.vb</DependentUpon>
    </Compile>
    <Compile Include="ActivationForm.vb">
      <SubType>Form</SubType>
    </Compile>
    <Compile Include="Settings.vb" />
  </ItemGroup>
  <ItemGroup>
    <EmbeddedResource Include="MainForm.resx">
      <DependentUpon>MainForm.vb</DependentUpon>
    </EmbeddedResource>
    <EmbeddedResource Include="My Project\Resources.resx">
      <Generator>VbMyResourcesResXFileCodeGenerator</Generator>
      <LastGenOutput>Resources.Designer.vb</LastGenOutput>
      <CustomToolNamespace>My.Resources</CustomToolNamespace>
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    <EmbeddedResource Include="ActivationForm.resx">
      <DependentUpon>ActivationForm.vb</DependentUpon>
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  <ItemGroup>
    <None Include="App.config" />
    <None Include="My Project\Application.myapp">
      <Generator>MyApplicationCodeGenerator</Generator>
      <LastGenOutput>Application.Designer.vb</LastGenOutput>
    </None>
    <None Include="My Project\Settings.settings">
      <Generator>SettingsSingleFileGenerator</Generator>
      <CustomToolNamespace>My</CustomToolNamespace>
      <LastGenOutput>Settings.Designer.vb</LastGenOutput>
    </None>
  </ItemGroup>
  <ItemGroup>
    <BootstrapperPackage Include=".NETFramework,Version=v4.0,Profile=Client">
      <Visible>False</Visible>
      <ProductName>Microsoft .NET Framework 4 Client Profile %28x86 and x64%29</ProductName>
      <Install>true</Install>
    </BootstrapperPackage>
    <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
      <Visible>False</Visible>
      <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
      <Install>false</Install>
    </BootstrapperPackage>
    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
      <Visible>False</Visible>
      <ProductName>.NET Framework 3.5 SP1</ProductName>
      <Install>false</Install>
    </BootstrapperPackage>
    <BootstrapperPackage Include="Microsoft.Windows.Installer.3.1">
      <Visible>False</Visible>
      <ProductName>Windows Installer 3.1</ProductName>
      <Install>true</Install>
    </BootstrapperPackage>
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
  <PropertyGroup>
    <PostBuildEvent>if /I "$(ConfigurationName)" == "Protected Release" copy "$(TargetPath)" "$(TargetDir)$(TargetName)Tmp.exe"
if /I "$(ConfigurationName)" == "Protected Release" "C:\Program Files (x86)\Microsoft\ILMerge\ILMerge.exe" /out:"$(TargetPath)" "$(TargetDir)$(TargetName)Tmp.exe" "$(TargetDir)Licensing.Net.Dll" /internalize
if /I "$(ConfigurationName)" == "Protected Release" Eazfuscator.NET.exe "$(TargetPath)" --msbuild-project-path "$(ProjectPath)" --msbuild-project-configuration "$(ConfigurationName)" --msbuild-project-platform "$(PlatformName)" --msbuild-solution-path "$(SolutionPath)" -n --newline-flush -v 3.3</PostBuildEvent>
  </PropertyGroup>
  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
       Other similar extension points exist, see Microsoft.Common.targets.
  <Target Name="BeforeBuild">
  </Target>
  <Target Name="AfterBuild">
  </Target>
  -->
</Project>

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Ansel Reynard

United States United States
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Web03 | 2.8.141216.1 | Last Updated 16 Oct 2012
Article Copyright 2012 by Ansel Reynard
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