Sorry for the long delay! I just did not get spare time for all the checks.
You found a big bug! Thanks for reporting. :-)
If SuRun required the user's password and the program to be started was marked with "Automatically start this program with elevated rights.", SuRun GPF'ed internally and the user got a message box saying something like "Access denied".
This has (hopefully) been fixed in
SuRun 1.2.0.9 Beta 8.