This very irritating problem started a little over a week ago, where dllhost.exe runs itself in the background of my computer without me knowing about it until i notice how slow and unresponsive my computer becomes. When I enter task manager, I can easily see around 10 or more dllhost.exe in the processes tab running and taking a huge amount of my cup capacity, even when I end the tasks one by one, they start again in a few minutes or even less and it is just frustrating because for some reason my anti virus wont detect it. The scarier part is that I have tried re-installing whole windows image from manufacturer DVDs that I have for my operating system, but my computer will NOT allow me to do this. I know they work because I have used them in the past, the Cd's are kept in prefect condition unscratched but my PC doesn't seem to read them anymore. Please help, Thanks.