User Configuration\Administrative Templates\Windows Components\NetMeeting\Application Sharing
Prevents users from sharing command prompts. This prevents users from inadvertently sharing out applications, since command prompts can be used to launch other applications.
Note
The NetMeeting folder containing this policy is created by the Conf.adm administrative template. Conf.adm is included in Windows 2000, but does not load in Group Policy automatically. To display the NetMeeting folder, add the Conf.adm administrative template to Group Policy.