I agree with the opinion about VSS and it's confirmed by my newly experience 
with NMM 2.3
 
> Date: Thu, 14 Apr 2011 16:14:24 -0500
> From: cmartin AT SPP DOT ORG
> Subject: Re: [Networker] Minimum hardware and VCB Licensing question
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> 
> Good to know I'm not the only one with vcb woes.. :) 
> 
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] 
> On Behalf Of Michael Leone
> Sent: Thursday, April 14, 2011 1:18 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] Minimum hardware and VCB Licensing question
> 
> > doesn't work. You are heavily reliant on VSS for it to work well, and 
> > I have a very low opinion of VSS too.
> 
> My opinion of VSS (especially on Win2003) is definitely R-rated ...
> 
> > Avoid VCB at this stage if you can. I speak from personal experience.
> 
> I backup each VM as if it was a physical machine, so each is installed as a 
> NW client. At least it all works that way ...
> 
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