TechNet Support WebCast: Volume Shadow Copy for Exchange Server 2003
http://support.microsoft.com/kb/842066/

If you download the PowerPoint show and look at slide 14 it says that NTBackup does not use VSS to backup Exchange

Well I've not seen applications like databases backup correctly without 3rd party or VSS so was curious if / how NTBackup was working.

I've not tried it myself but have had other systems not backup properly with NTBackup alone.


PowerPoint download:
http://download.microsoft.com/download/0/5/f/05fd8f6e-35c8-425f-ba9d-6941b4b60850/wc051904.exe