User Configuration\Administrative Templates\Windows Components\NetMeeting\Audio&Video
Disables the audio feature of NetMeeting. Users will not be able to send or receive audio.
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.