You can get the same message using other Autodesk products, 3DS Max, Maya, Volo View not just Autosketch 9.
Sometimes uninstalling an Autodesk demo can cause this problem.
I have installed Autosketch 9 a dozen times on fresh installs of Vista Home Premium and Ultimate with no problems at all.
Vista is just another 32 bit OS, not much different than XP underneath.
Do a google search for AcGe16.dll problems -- plenty of references to give you some idea what the problem is.
Paul