Spool/Connectivity/SNMP Problems

I have a stand alone nt 4 file/print server that houses our accounting software. I have two workstations running WinME and Win2K. After rebooting server, all can talk to each other. After other workstations (10 in all minus the two mentioned) print, recieve the following error. Spoolss.exe entry point not found. SnmpSvcGetEnterpriseOID could not be located in snmpapi.dll. SNMP had been installed and then removed. So…what else could be calling that dll to fire? Only concern is that I have to OK through the message before any workstations can print, and then the two machines I mentioned can’t connect to the server.