If you have multiple IP addresses assigned to your computer and install IIS, the Web server will bind and listen to all IP addresses--even if you use only one address. This feature, called socket pooling, can be undesirable because it basically reserves port 80 on all IP addresses on your computer.

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.

To disable socket pooling, follow these steps:

1. Open a command prompt, and navigate to the \Inetpub\Adminscripts folder.

2. Type cscript adsutil.vbs set w3svc/disablesocketpooling true. If you have successfully disabled socket pooling, you'll see "disablesocketpooling : (BOOLEAN) True."

3. Type net stop iisadmin.

4. When prompted whether you want to stop WWW publishing service, answer Yes.

5. Type net start iisadmin.

6. Type net start w3svc.