I'm seeing many copies of those 2 programs running on the server. They seem to collect over time and each consume 5mb-10mb of RAM. It seems to be part of the printer driver for either the HP LaserJet 4100 or the HP Color LaserJet 4600.
Right now I have a batch file that kills all of the instances every morning at 3:30am.
taskkill /im hpboid.exe /f taskkill /im hpbpro.exe /f
It takes a few days for these to accumulate. Any suggestions on stopping this problem at the root?