It's not the Web server it's the browser searching for network connections...
The error page is simply your start page set on the Internet when you have no Internet connection. Change it to localhost and that problem with go away.
+++ Rick --
>I have problem running my apps. on w2k pro. (works on NT with no problem at all). If I close browser and start it again I always have HTTP 500 error. In about 30 sec. I can run program (obviously Web server is recovering but why?). This really, really annoing.
>TIA Mark