LSASS.EXE No entry point found

Hi, OK got an XP SP2 machine running as a client on SBS2003. All of a sudden
it has just decided not to start. I get a blank screen with a dialogue box
stating it can't find an entry point in RPCRT4.dll - click OK and that's it;
nothing else happens. Found a couple of similar problems when searching
around but none that reference RPCRT4.dll. Renamed to .old and expanded the
file from the install CD to see if this would work, but no joy.
Basically knowing which way up a CD goes is about my limit when it comes to
windows and I was wondering if anybody had any suggestions other than a fresh
install?

TIA

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http://search.microsoft.com/results....dll.&mkt=en-us


http://search.microsoft.com/results....s&PageType=101


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"Matthew Sharlot" <MatthewSharlot@discussions.microsoft.com> wrote in message
news:C509F5B7-8590-4BFF-8544-AB48608FB531@microsoft.com...
> Hi, OK got an XP SP2 machine running as a client on SBS2003. All of a sudden
> it has just decided not to start. I get a blank screen with a dialogue box
> stating it can't find an entry point in RPCRT4.dll - click OK and that's it;
> nothing else happens. Found a couple of similar problems when searching
> around but none that reference RPCRT4.dll. Renamed to .old and expanded the
> file from the install CD to see if this would work, but no joy.
> Basically knowing which way up a CD goes is about my limit when it comes to
> windows and I was wondering if anybody had any suggestions other than a fresh
> install?
>
> TIA