vbscript.dll and jscript.dll are not registered by default on a fresh Windows 7 install - this *might* be causing your problem.
Run an ELEVATED command prompt. It is very important that you elevate first because if you register the DLLs unelevated they will register in HKCU and then won't work while elevated as an admin. Also, you won't be able to use the -u switch to unregister them - you have to go find the bad CLSID keys and delete them manually. Once elevated type: "regsvr32.exe jscript.dll" and "regsvr32.exe vbscript.dll" -- <http://forum.pspad.com/read.php?2,50046,54912> PSPad freeware editor http://www.pspad.com
