Training Exam Kit MS Press Runtime Error

After I've installed the practice tests and try to launch them I get a Run-time error '-2147319779 (8002801d)': Automation error Library not registered.
I've tried uninstalling and reinstalling the practice tests with no luck. I also checked the errata and corrections page for this title and it doesn't mention anything. Has anybody else experienced this? If so do you have any possible solutions.
I've tried uninstalling and reinstalling the practice tests with no luck. I also checked the errata and corrections page for this title and it doesn't mention anything. Has anybody else experienced this? If so do you have any possible solutions.
Comments
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Here's two different things to try that worked for others having the same problem with those tests.
1) From a command prompt run:
regsvr32 C:\Windows\System32\Vsocx6.ocx
Only if that doesn't work then give this a try:
profile: linkedin.com/in/astorrs
IIRC either use Run As Administrator or press and hold the shift key or ctl key when starting the setup program.
MCSA:03/08/12/16 MCSE:03s/EA08/Core Infra
CCNA
Worked for me Im using vista and was receiving the library not registered error
Thank you very much
The first solution mentioned by astorrs will fix the problem:
Run regsvr32 C:\Windows\System32\Vsocx6.ocx
or if you are on Windows Vista 64 bit:
Run regsvr32 C:\Windows\sysWOW64\Vsocx6.ocx