I think ever since 206 every time i upgrade Resharper (VS2003) the whole process goes all the way through to the final 'registration of components' in a dos window and it fails (some exception that doesn't stay on the screen long enough) and rolls back - with the second attempt working fine!(presumably the difference is the uninstall that doesn't happen the second time).
So it just happened with 209 and I haven't 'closed' the msi instance yet - looking around for logs I find:
Error 1722.There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. Action RunInstallUtilInstallNew, location: C:\WINDOWS\, command: C:\WINDOWS
Microsoft.NET\Framework\v1.1.4322\InstallUtil.exe /VsVersion="7.1" /InstallDir="C:\Program Files\JetBrains\ReSharper\VS2003
" "C:\Program Files\Microsoft Visual Studio .NET 2003\Common7\IDE
and I think the attached file has the exception in!
Ronnie - about to retry 209 install :(