I've created a WinXP bottle with IE6 and with the mpp.dll file (inside the Windows/System32/) required by Groove. But in the end of the installation process I got the following Groove error message:
Unknown error 0x80040150
HRESULT: 0x80040150
Process: Groove.exe (ID: 10 (0x0000000a))
Thread ID: 11 (0x0000000b)
Date: December 30, 2006 3:11:35 AM GMT