We recently experienced an issue with a print server after rebooting it, the server came back up but the printer spool service kept crashing with the following error
"Faulting application spoolsv.exe, version 6.0.6001.18511, time stamp 0x4c6a8f6f, faulting module HpTcpMon.dll, version 7.1.5.51, time stamp 0x4ab0e358, exception code 0xc0000005, fault offset 0x00005dbe, process id 0xe8c, application start time 0x01cd6329a99e67d5.”
To resolve this we had to do the folllowing
- Browse to C:WINDOWSsystem32
- Rename HpTcpMon.dll to HpTcpMonOld.dll
After doing this we could start the Printer Spool service with no problems 
