spoolsv.exe memory leak

Hello,

Iam getting a problem with printer spooler in the newly created xp
image(which is close to XP professional). The spoolsv.exe memory is getting
bigger and and bigger (one system is went up to 240MB) and whole system is
become very slow.

The problem is observerved when a guest user is logged in to the system and
running a custom application which make some print jobs. And also noticed
that all the print job is cleared from the printer queue. The printer drivers
installed is HP deskjet 5600 series and primo PDF printers. The printers are
connected via USB.

Is something related with security for this guest user?
Or some components missing in the printing services to manage the printer
spooler?

Please help me!!

Hari