The processes you're killing are really network services - it's difficult to say which they are without seeing your system itself, but it's sufficient to say that there's either a misconfiguration, or a virus/spyware/adware problem, and by killing the service, you're either correcting the config error or killing the spyware process.

My first recommendation is to download the latest versions of both Spybot and Ad-aware, and run scans in safe mode. If, after the scans and cleaning have completed, the problem persists, check to see which service you're actually killing (right click 'my computer', go to manage, go to service, make a list of the services that are 'started', kill the processes, make a new list of the services that are 'started', take the differences between the lists as the services you killed), and either post them here, or start googling.