WS08 R2: Print Spooler Crash

no with that dll, but with others....
I manage a print server 2008r2 with about 600 print queues, and the last weeks it makes me crazy.
A lot of spooler crashes due to some different DLLs, mostly of Xerox print processors.
A fix whom temporary fix the issue was changing the print processor to all the installed printers to winprint, making a replacing from registry key.
I'm still searching a perfect fix, to have no more restless nights...

Thanks for the reply. Microsoft has even recommended to ask the vendor to fix the dll.

Yes we did... that's also the recommendation from Microsoft. Thanks for your reply.