I was having the same problem with microsoft intellipoint. it was in my registry, but it wouldn't start. in this case, I had to put in the entire path to the file (the file was in c:\program files\microsoft hardware\mouse, which is normally not included in the system path, but the registry was only trying to start point32.exe, instead of the whole path. check that out first. if that doesn't work, put a shortcut to the program in your startup folder.