I have Windows 7 Ultimate and was able to install Visual Studio 2008 Professional version 9.0.21022.I can access the program but every time it opens, I always get this annoying error from Interactive Services Detection: The Application Data folder for Visual Studio could not be created. I checked out some forums about this and found out it seem to have compatibility issue with Windows 7. How true is this? Could this be also a conflict since I had upgraded from VB Studio Express Edition and maybe failed to remove all previous component correctly? Please help!