http://blogs.technet.com/toml/archive/2008/12/29/ocs-2007-r2-preparing-the-environment.aspx&lt;Feb 13 Edit appended to end of post&gt; Just to prove that knowledge of the past doesn’t replace proper planning, I got caught in the Schema update because while my Domain was operating at Windows 2003 functional level, my forest was not. The onlineen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/toml/archive/2008/12/29/ocs-2007-r2-preparing-the-environment.aspx#3177448Wed, 07 Jan 2009 17:44:37 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3177448Jon Reopelle<p>What is the minimum version of the Live Meeting client needed to operate with OCS 2007 R2?</p>http://blogs.technet.com/toml/archive/2008/12/29/ocs-2007-r2-preparing-the-environment.aspx#3177475Wed, 07 Jan 2009 18:43:09 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3177475toml-lcskid<p>From the R2 documentation: (I realize the documents are not released, I included the information simply so you knew where to check when it was released) </p> <p>Supported Versions</p> <p>Office Communications Server 2007 R2 supports the Office Live Meeting 2007 version of the Office Live Meeting client for Web conferencing.</p> <p>For information about software and hardware requirements for the Office Live Meeting client, see the “Deploying the Microsoft Office Live Meeting 2007 Client with Office Communications Server 2007 R2” guide.</p> <p>TomL LCSKid</p>