How to Backup Hyper-V VMs without shutting down

I just found out that the Windows Server Backup on R2 releases can now backup VMs without the need to shut them down. If you specify a AVD file to backup, Windows Server backup will create a vshadow copy first before making the actual backup. No more need for expensive 3rd party applications to do this for you.

Best of all, we can use the Windows Server Backup to schedule weekly / regular backups automatically!! Great time savings for admins like us!