http://blogs.technet.com/dst2007/archive/2007/03/01/does-the-pocketpc-patch-cover-both-pocketpc-2003-and-windows-mobile-5.aspxQ: The Windows mobile website has a Desktop installer to install via active sync it contains two cabs. one for PocketPC and one for Smartphone. Does the PocketPC patch cover both PocketPC 2003 and windows mobile 5? A: There are 2 different cab files foren-USCommunityServer 2.1 SP1 (Build: 61025.2)