This is the spooler process for your printer. Not sure why this would be slowing down your system unless you have a bunch of print jobs stuck in the queue and clogging things up. Check to make sure nothing is backed up there. Also I wonder if you have print sharing enabled? I can't see why else this would report on your firewall....
If you don't have a printer hooked up then turn it off. Do the following:
Start > Control Panel > Administrative Tools > Services ...go down to spooler and right click it and click stop. You can then change it to disabled or manual, by default of course it is set to automatically startup with windows.
I have seen this problem before as a cause of a virus/trojan so you might want to scan your pc with the latest virus definitions...you can read one article here
Also I have heard from others that sometimes printer software itself will try probing the network for printers which is another possibility. Just more food for thought.
Not sure why I can't edit my post but anyways just wanted to make sure you're not printing to another shared or network printer on your network are you? This could also be why the spooler service is trying to pass through the firewall. Hope some of this helps.
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