Windows Installer 5.0 is available for Microsoft Windows 7 and Windows Server 2008 R2. Bob Arnson announced that WiX v3.0 now includes support for new Windows Installer 5.0 features starting with the 3.0.4917.0 build on the SourceForge site. Here’re couple of useful links to help getting started learning about the new features that will be available in Windows Installer 5.0.

• What's new in Windows Installer 5.0 topic on MSDN
• Windows SDK for Windows 7 beta download location (which includes a beta version of the Windows Installer 5.0 SDK)