In addition to adding virtual servers, the Communicator Web Access snap-in also makes it easy to delete virtual servers.
To delete a virtual server
Log on to the computer that is running the Communicator Web Access snap-in. To delete a virtual server, you must be logged on as a member of the local Administrators group and the RTCUniversalServerAdmins group.
Click Start, point to Administrative Tools, and then click Microsoft Office Communications Server 2007 R2, Communicator Web Access.
Expand the name of the computer where the virtual server is hosted, right-click the name of the virtual server to be deleted, and then click Delete.
In the Warningdialog box, click Yesto delete the virtual server.