There's plenty of information out there about this error. I haven't seen anything specific to IIS7. The error is random, but after it happens once, it continues for every subsequent request until the site is restarted. We have 3 servers in a farm, this happens on all of them. We are on 2008 64bit...

Hi, This is the log collected below. I found the “http404” response while the user “schluem” trying to access the website hosted at 272.213.207.120(shown below) from another portal. The count of this 404 error sometimes crossing 50,000 . Could you please suggest what is the exact category of reason for...