The Web server plug-in settings are handled on a per instance basis. For example, the MaxConnections property specifies the number of pending requests that are allowed on that Web server, for each Web server plug-in instance. If the MaxConnections property is set to 20, and you start three Web server child processes, each of the three Web server plug-in instances allow 20 pending connections to the same application server, which means that there could be up to 60 pending connections