How To: Install the .NET Framework Using Burn

Applications written using the .NET Framework often need to bundle the .NET framework and install it with their application. Wix 3.6 and later makes this easy with Burn.

Step 1: Create a bundle for your application

Follow the instructions in Building Installation Package Bundles.

Step 2: Add a reference to one of the .NET PackageGroups

  1. Add a reference to WixNetFxExtension to your bundle project.
  2. Add a PayloadGroupRef element to your bundle's chain that references the .NET package required by your application. For a full list, see WixNetfxExtension. Ensure that the PayloadGroupRef is placed before any other packages that require .NET.
  3. <Chain>
        <PackageGroupRef Id="NetFx45Web"/>
        <MsiPackage Id="MyApplication" SourceFile="$(var.MyApplicationSetup.TargetPath)"/>

Customizing your bootstrapper application

Any native bootstrapper application, including the WiX Standard Bootstrapper Application, will work well with bundles that include .NET.

Managed bootstrapper applications must take care when including .NET to ensure that they do not unnecessarily depend on the .NET framework version being installed.

  1. Reference the managed bootstrapper application host from your bundle.
  2. <BootstrapperApplicationRef
  3. Target your bootstrapper application to the version of .NET built into the operating system. For Windows 7, this is .NET 3.5.
  4. Support using the newer versions of .NET if the older versions are not available. The following example shows the content of the BootstrapperCore.config file.
  5. <configuration>
        <sectionGroup name="wix.bootstrapper" type="Microsoft.Tools.WindowsInstallerXml.Bootstrapper.BootstrapperSectionGroup, BootstrapperCore">
          <section name="host" type="Microsoft.Tools.WindowsInstallerXml.Bootstrapper.HostSection, BootstrapperCore" />
      <startup useLegacyV2RuntimeActivationPolicy="true">
        <supportedRuntime version="v2.0.50727" />
        <supportedRuntime version="v4.0" />
        <host assemblyName="MyBootstrapperApplicationAssembly">
          <supportedFramework version="v3.5" />
          <supportedFramework version="v4\Client" /> 
            <!-- Example only. Replace the host/@assemblyName attribute with 
            an assembly that implements BootstrapperApplication. -->
            <host assemblyName="$(var.MyMBA.TargetPath)" />