A Printer Spooler is a temporary place that holds anything sent to print. It is available as a service in Windows, which manages the pooling system. It is especially useful when the printer is shared ...
When a team of hackers believed to be from the US and Israel deployed the Stuxnet worm in 2010 to sabotage centrifuges at an Iranian uranium-enrichment facility in Natanz, one critical vulnerability ...
Hmm, well your spooler (spooler.exe) is your print spooler service. I dunno why it would be sending stuff to the internet though. You are probably best off denying it.