Try also this

Go to the Start Menu and click on Run.
Type CMD on Run Search Bar to start Command prompt.
Type cd %windir%\system32 and press Enter.
Type regsvr32 vbscript.dll and press Enter.
Type regsvr32 jscript.dll and press Enter.

or try with this
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=15102758&linkID=9240617
in particolar try to
Run the command that unregisters the DLL:
Type regsvr32 /u vbscript.dll into the Command Prompt and press ENTER.

and register again

and if the problem is still

Go to the Start Menu and click on Run.
SFC /SCANNOW