HFSS VBS Scripting problem/HFSS Registry problem

I'm having difficulty getting HFSSv15.0 to script in Windows 8. I generate a test script by recording a script from Tools>Record Script to File. I then try to run that script again through HFSS Tools>Run Script and it gives me the error:
If I instead run the .vbs file through Windows Based Script Host, I get the error:

Looking up the two error codes, the problem seems to be related to HFSS's registry but I have no idea how to go about fixing this problem.