host process for windows services stopped working and has closed.....I saw about 4 pages of comments of people having this problem. I have been having it also, but it has gotten worse recently. I have a majic jack so that I can communicate with friends and family in the U.S., so my laptop has to be on all the time. I have a Acer Aspire 5520-5912 2g DDR, 160G HDD, AMD Turion 64x2 with windows vista home premium. When I first got this, I had very little problem other than a way to sensitive mouse pad. That alone can make me really crazy, but this problem with host process is really becoming a pain. I had quit using IE and was using Firefox, but that has crashed a lot lately, so today I downloaded Safari and what a difference. Much faster and so far no crashing, but I haven't used it after this problem. My laptop has the SP2 update which wasn't fun either. After I did the first update to sp2, I had to wipe out my laptop and re-install everything. If anyone finds a fix for this, I'd love to know; my husband just bought a new laptop and he's getting the same thing.