Microsoft Windows [Version 6.1.7000] (C) Copyright 2009 Microsoft Corp. C:\Windows>netsh nap client delete server ?
[ group = ] group
[ url = ] url
Deletes the URL from a specified trusted server group.
group - Specifies the name of the trusted server group. (Required)
url - Specifies the URL. (Required)
delete server group = "group1" url = "url1"