I think I have the comdlg32.ocx problem fixed for Vista users..
Download the GM editor
http://cphl.calgarypuck.com/cgi-bin/...d.cgi?gmeditor
Download comdlg32.ocx
( I used
http://www.afreeocx.com/ocx/info/comdlg32_ocx.html )
Move it to C:\Windows\SysWOW64 folder instead of the \Windows\system32 we have been told in the past. Apparently that is the folder that Vista uses for 32bit drivers.
Then right click on the GMEditor_v1.5beta1 file and you must select run as administrator.
I got mine working this way. Hope it helps the others that were having Vista issues.