"Configuring Intelligent IM Filtering" in the Office Communications Server 2007 R2 Administration Guide, at http://go.microsoft.com/fwlink/?LinkId=137125

"Enabling User Accounts for Office Communications Server" in the Office Communications Server 2007 R2 Administration Guide, at http://go.microsoft.com/fwlink/?LinkId=137129

"Configuring IM Provider Support on Edge servers" in the Office Communications Server 2007 R2 Administration Guide, at http://go.microsoft.com/fwlink/?LinkId=137126

"Managing User Accounts" in the Office Communications Server 2007 R2 Administration Guide, at http://go.microsoft.com/fwlink/?LinkId=137129

"Step 2.2. Configure DNS" in the Office Communications Server 2007 R2 Edge Server Deployment Guide, at http://go.microsoft.com/fwlink/?LinkID=133685

"Capacity Planning" in the Office Communications Server 2007 R2 Planning Guide, at http://go.microsoft.com/fwlink/?LinkID=133725