You can use Windows Server Backup to backup Exchange store.
Is not excellent but it can be useful as first backup step.
1. Go to powershell:
PS C:\> Import-Module servermanager
PS C:\> Add-WindowsFeature backup
2. Select Exchange store and partition log
2. Select the VSS Settings tab and make sure that VSS full backup is chosen. Click OK
Here they are more precise articles to go deeper on this argument:
http://www.techrepublic.com/blog/the-enterprise-cloud/back-up-exchange-2010-with-this-windows-server-2008-r2-feature/
http://exchangeserverpro.com/exchange-2010-mailbox-database-backup-restore-windows-server-backup/
