1. Click Start, point to Administrative Tools, and then click Internet Information Services (IIS) Manager.
2. In the console tree, expand ServerName, where ServerName is the name of the server, expand FTP Site, right-click your FTP site, and then click Properties.
3. Click the FTP Site tab.
4. Under FTP site connections, click Connections limited to, and then type the maximum number of simultaneous connections that will be permitted to the server. When the limit is reached, IIS returns an error message to the client stating that the server is busy.
5. In the Connection timeout (in seconds) box, type the length of time before the server disconnects an inactive user. This makes sure that all connections are closed in the specified time period if the FTP protocol does not close a connection.
6. Click OK.
7. Quit Internet Information Services (IIS) Manager.