How to deploy 64-bit and a 32-bit Windows Installer package as a single setup?

Question

I need to deploy a software setup targeting both, Windows 64bit and 32bit. I have two separate Windows Installer databases (created with WiX) for each platform, and I am usi

Answer 1

I would definitely use Burn in this scenario. Something akin to the following:

<Wix>
  <Bundle...>
    <BootstrapperApplicationRef Id='WixStandardBootstrapperApplication.HyperlinkLicense' />

    <Chain>
      <MsiPackage InstallCondition='NOT VersionNT64' SourceFile='path\to\x86.msi' />
      <MsiPackage InstallCondition='VersionNT64' SourceFile='path\to\x64.msi' />
    </Chain>
  </Bundle>
 </Wix>

This is exactly one of the scenarios Burn was designed to handle.

Answer 2

You can do it in a single Wix via Conditions and Features.

<Feature Id='X86' Level='1'>
  <ComponentRef Id='X86Feature1' />
  <Condition Level="1">NOT VersionNT64</Condition>
</Feature>