Summary
You can limit the simultaneous connections to WebLink or Web Access by changing the maximum connections IIS allows to the website that WebLink or Web Access runs under.
Resolution
You can configure this setting through the IIS Manager.
To configure the maximum connections allowed to a website in IIS 6
To configure the maximum connections allowed to a website in IIS 5 (Windows 2000)
Note: IIS 5 for Windows XP contains a built-in limit of 10 maximum connections.
More Information
Performing the above procedure throttles all connections to the specified IIS website. If you have more than one virtual directory configured under that website, those applications will also be affected by the connection limit.