Add these files to your exclude list, or do not use ALL_LOCAL _DRIVES, instead specify what you want to back up.
If you want to backup the VSS, you should check out these links:
http://seer.entsupport.symantec.com/docs/337226.htm - Shadow Copy Components:\ backup ends with status 1.
http://seer.entsupport.symantec.com/docs/283377.htm - How to verify Windows Open File Backup operation using VSSADMIN and BPFIS before contacting Symantec Technical Support
http://seer.entsupport.symantec.com/docs/321181.htm - Volume Shadow Copy Service (VSS) Information and Troubleshooting VSS issues.