The beta for the next Windows Installer (version 3) has begun this evening. Lucky testers have been informed the MSI 3.0 Beta1 release is supported on Windows 2000 Service Pack 3 or higher, Windows XP, Windows XP Service Pack1 and Windows Server 2003. However it is not supported on Windows 95, Windows 98, Windows Millennium, Windows NT or any 64-bit platform.
Testers are able to download the first beta on Betaplace right now.
Download: MSI 3.0 Beta 1 English (Login Required)
News source: BetaPlace.com