If you are deploying the Microsoft Office Live Meeting 2007 Client, here are some quick facts that will help answer some basic questions:
1. The Live Meeting 2007 client shares several settings with Microsoft Office Communicator. The specific registry key settings the two clients share is documented here. There are four settings which determine how the client connects to the OCS server:
a. ServerAddressExternal: server name for external meeting participants to connect to.
b. ServerAddressInternal: server name for internal meeting participants to connect to.
c. ServerSipUri: the SIP address used when connecting via Communicator, Live Meeting, or the Outlook Conferencing Add-in clients.
d. Transport: the network protocol (TCP or TLS) used to connect.
2. The Live Meeting 2007 client settings are shared with the Microsoft Outlook Conferencing Add-In.
3. There is a Microsoft KB article describing an administrative template for the Live Meeting 2007 client (but I cannot find where to download it): http://support.microsoft.com/kb/948741/. One useful setting here is the ability to suppress the User Accounts dialog box that appears when a user starts the Live Meeting 2007 or the Conferencing Add-in for Outlook for the first time.