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Can’t find script engine “VBScript” for script …

I recently came across this error while trying to execute a VBscript.

Can’t find script engine “VBScript” for script …

After some troubleshooting this was related to the uninstall of McAfee antivirus software.
McAfee antivirus intercepts all VBscript execution by changing the executable that runs the scripts.
After uninstallation, this change was not rolled back and VBscript execution would faill unless explicitely called by wscript.exe or cscript.exe.

Solution is to revert he change in the Windows registry.
In the following registry key:
Find the value named (Default) of type REG_SZ and change the data back to:
instead of:
c:\Program Files\Common Files\McAfee\SystemCore\ScriptSn.20110218083735.dll

You have the adjust the permissions on the key InprocServer32 to give write permission to Administrator (or your user).

If your problem is unrelated to McAfee and the registry value is correct you might have to re-register the DLL’s.
Open a CMD with elevated privileges (run as administrator) and execute the following commands:

cd "%systemroot%\system32"
regsvr32 jscript.dll
regsvr32 vbscript.dll
cd "%systemroot%\SysWow64"
regsvr32 jscript.dll
regsvr32 vbscript.dll

More information and information that i used to troubleshoot this issue:


McAfee EPO agent uninstall

Hoe de McAfee EPO agent uninstalleren ?
Ga naar ‘Start – Uitvoeren’ tik in ‘CMD’ (zonder quotes) en druk op OK.
In het zwarte kader tik je na de cursor:

cd “c:\Program Files\Network Associates\Common Framework\”

Of indien niet succesvol probeer deze,

cd “c:\Program Files\McAfee\Common Framework\”

Tik daarna:

frminst /remove=agent