Read the whole thread and I realised that most of the information is for XP. Anyway I tried the following for Windows 7 ... and it works perfectly...
Set XBMC as shell for a specific user account
Log in as administrator.
Open the start menu, and type in the search box: mmc <ENTER>.
Choose File -> Add/Remove Snap-in....
Select Group Policy Object Editor and hit Add.
In the wizard that pops up, hit Browse..., go to tab Users, select your user account (the one that you set up to log on automatically in step 1) and hit OK.
Make sure that the checkbox in the wizard is Unchecked, and hit Finish.
Hit OK in the Add/Remove Snap-ins window.
In the User Configuration -> Administrative Templates -> System folder, open Custom User Interface.
Select Enabled and enter the full path (including XBMC.exe and any switches that you may use) in the Interface file name textbox.
Hit OK and reboot your system. It should now log in and start XBMC automatically without showing the start menu and icons first.
Now the only thing I have to do to find a way to change the windows 7 logo to XBMC and if possible the BIOS screen as well for my P5B Delux Wifi Mobo .....
Any suggestions ...
?