Oslo Installation – Windows Installer

I was installing the Oslo CTP on my XP laptop (I’ve had it on my Vista PC for over a month now), but during the installation I got an error telling me that I needed a newer Windows Installer, with no additional information.  I downloaded the Installer 4.5 Redistributable, and after a reboot now my Oslo SDK Install didn’t do anything.  I went into Add/Remove programs, removed “Microsoft Codename Oslo Repository” and “Microsoft Codename Oslo SDK Temporary Setup Files” and kicked off the install again and this time it all went well.  Life in CTP, i guess…