spooler subsystem app

hello, I think I may have a trojan my computer keeps rebooting itself for no reason

I found in zonealarm pro that Spooler subsystem app is active and had internet access, I dont remember being that drunk:)

there is a spoolsv.exe in c:\WINNT\system32
and one in c:\WINNT\servicepackfiles\i386
and avast! does not recognise them as viruses

there was that trojan.gen {VC} on my computer with the first bootscan of avast! found in winstart.001 I think, it was dleeted

I am running windows 2000 with the latest service packs and updates

any information would be much appreciated
thank you

(I dont use a printer)