WINDOWS 2000 SERVER
Socket pooling can be a problem if you want to install another Web server to handle the request on port 80 on another IP. However, you can disable this behavior.
socket pooling, follow these steps:
2. Type cscript adsutil.vbs set w3svc/disablesocketpooling true. If you have successfully disabled socket pooling, you'll see "disablesocketpooling : (BOOLEAN) True."
net stop iisadmin.
5. Type net start iisadmin.
6. Type net start w3svc.