Hi,
Do these to repair/replace damaged/missing system files.
Start - type in Search box - COMMAND find at top of list - RIGHT CLICK - RUN AS ADMIN
sfc /scannow
How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log
http://support.microsoft.com/kb/928228
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If you need to extract it from the DVD (any Vista DVD that is same 32 or 64 bit).
Access Files On Your Vista Install DVD
http://www.vistax64.com/tutorials/86959-access-vista-install-dvd-files.html
How to extract missing system files from the DVD of Windows 7/Vista.
Hope this helps.
Rob Brown - MS MVP - Windows Desktop Experience : Bicycle - Mark Twain said it right.