I don't had the time to test it, but if i interpret the doc's correctly only 
the VSS System State can be backed up without a license.

NetWorker 7.4 Service Pack 2 Release Notes P/N 300-005-511 REV A04 Page 9:
VSS licensing: A license is no longer required to back up the system state on
Microsoft Windows.

Birk Bohne
Backup and Virtualization Consulting
Erfurt, Germany
mobile: +49 151 20470983
email:  birk.bohne AT batchworks DOT de

----- "Michael Nored" <mrnored AT NETZERO DOT NET> schrieb:

> True statement, take it out of one of your 2003 clients and give it a
> try,
> couldn't hurt anything.
> 
> Michael Nored
> Consultant
> Nored Consulting, LLC
>  
> M: (407) 399-8162
> T:  (352) 350-7142
> E: mnored AT Netzero DOT net
> 
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
> On
> Behalf Of MIchael Leone
> Sent: Monday, May 05, 2008 4:00 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] Question about VSS and 7.4.2
> 
> So do I have this right ... with 7.4.2, I no longer need special
> licenses 
> to make VSS backups? So if I upgrade my clients to 7.4.2 (and since my
> 
> server is already 7.4.2), I can use VSS in any filesystem backup of a
> 
> Win2003 client? (VSS doesn't work in Win2000, right?)
> 
> I have "VSS:*=off" in most of my Win2003 client, since I don't have 
> speciall VSS licenses for them. Now, I can remove that restriction,
> and NW 
> will happily do VSS backups of any Win2003 client?
> 
> -- 
> Michael Leone
> Network Administrator, ISM
> Philadelphia Housing Authority
> 2500 Jackson St
> Philadelphia, PA 19145
> Tel:  215-684-4180
> Cell: 215-252-0143
> <mailto:michael.leone AT pha.phila DOT gov>
> 
> To sign off this list, send email to listserv AT listserv.temple DOT edu and
> type
> "signoff networker" in the body of the email. Please write to
> networker-request AT listserv.temple DOT edu if you have any problems with
> this
> list. You can access the archives at
> http://listserv.temple.edu/archives/networker.html or
> via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER
> 
> To sign off this list, send email to listserv AT listserv.temple DOT edu and
> type "signoff networker" in the body of the email. Please write to
> networker-request AT listserv.temple DOT edu if you have any problems with
> this list. You can access the archives at
> http://listserv.temple.edu/archives/networker.html or
> via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER

To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER