What is it?
SPOOLer SerVice - spoolsv.exe
What does it do?
spoolsv.exe - The spooler service is responsible for managing spooled print/fax jobs
You will be able to end this through task manager!
Virus Precaution:
The spoolsv.exe which is from Microsoft is located at c:\windows\System32\spoolsv.exe . We've been able to find several viruses that run as spoolsv to trick you.
Backdoor.Ciadoor.B - Symantec Corporation
Hacktool.Privshell - Symantec Corporation
VBS.Masscal.Worm (vbs) - Symantec Corporation
Graybird-A @ Sophos