dotnet-installer/packaging/windows/msbuildextensions/variables.wxi

<?xml version="1.0"?>
<Include xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <?define Servicing_Key_SP   =   "0" ?>
  <?define Servicing_Key_SPIndex   =   "0" ?>
  <?define Servicing_Key_SPName   =   "Beta" ?>
  <?define Dotnet_ProductVersion   =   "$(var.BuildVersion)" ?>
  <?define Dotnet_DisplayVersion   =   "$(var.DisplayVersion)" ?>
  <?define Dotnet_BuildVersion   =   "$(var.BuildVersion)" ?>
  <?define Manufacturer     =   "Microsoft Corporation" ?>
  <?define ProductName      =   "$(var.ProductMoniker) ($(sys.BUILDARCH))" ?>
  <?define ProductLanguage  =   "1033" ?>
  <?define ProductVersion   =   "$(var.Dotnet_ProductVersion)" ?>
  <?define ProductFamily    =   "dotnet" ?>
  <?define ProductEdition   =   "001dotnet" ?>
  <?define LCID  = "$(var.ProductLanguage)"?>
  <?define DowngradeErrorMessage  = "A newer version is already installed; please uninstall it and re-run setup."?>

  <?define Platform   =   "$(sys.BUILDARCH)" ?>
  <?define Program_Files="ProgramFilesFolder"?>
  <?define Win64AttributeValue=no?>

  <?define DependencyKey   = "Dotnet_MSBUILD_EXTENSIONS_$(var.Dotnet_DisplayVersion)_$(var.Platform)"?>
  <?define DependencyKeyId = "$(var.DependencyKey)" ?>
</Include>