Up until now Microsoft refused to release the plugin to make Server backup aware of exchange 2007. For all of you waiting the release is now here! It is being distributed using Exchange 2007 SP2
Exchange 2007 Service Pack 2 includes a VSS plug-in for Windows Server Backup to support Exchange backups. Once SP2 is installed, you can use Windows Server Backup to back up and restore your Exchange 2007 SP2 databases. The new plug-in is delivered in the form of a single executable called WSBExchange.exe.
This plug-in is automatically installed by SP2 on all Exchange 2007 Mailbox servers. The plug-in enables Windows Server Backup to be able to make Exchange-aware VSS backups. For more information about this feature and how to use it, see Using Windows Server Backup to Back Up and Restore Exchange Data.
To see what else is new in Exchange 2007 SP2 click here: