Ok, I've Googled this quite a bit to no end. I purchased two Dell machines over the past year - one was a laptop, another was a new XPS desktop. Both came with Vista installed. Before, with my machines that were running XP, I was running WAMP just fine. On Vista, Apache stops working intermittently. The error message "The Apache Service Has Stopped Working. Windows is Checking For a Solution" It often will happen just when I go to the main localhost page from the WAMP task-tray icon. The page will come up, but then Apache shuts down as a result. Then sometimes Apache will go for quite a while without any problems (i.e. a few hours). I read on one forum where someone asked if localhost could be pinged when the error about the Apache Service stopping to work. So I tried this, and localhost still pings just fine. I have Norton Internet Security on one machine. and Trend Micro on the laptop. WAMP has this problems on both machines that are running Vista. Again - on XP, I never had this issue. I had no problem installing WAMP on my Vista machines, and the localhost page always comes up - but there seems to be about a 40% chance that when it does come up, it will then cause the Apache Service to stop working. PhPAdmin can cause it to happen as well as my own php code I am writing. Is anyone else having this problem with Vista? Any help solving this would be greatly appreciated! P.S. I apologize if this is a duplicate post. I've searched this forum and could not find anyone who had this exact issue.