Look into yout PVS documentation for command line switches for checking out  
and labeling the files.

To automate VS.NET use the command line version devenv.com try a /? for the
switches.

You could use som wsh to script a nigtly automated build process. And if
you are using some test suites, you could get quite a bit on the way.

I did managed to put someting like this together with VS.NET 2K2, Source
Safe and NUnit, some time ago.

/Thomas

I don't have time to work out the code right now, but there's a /command
switch you can use to fire up devenv and run a command.  You could write a
macro or addin command that listed all the files in the solution or a
project and then did a DTE.Quit to shutdown.  There's 20-30 automation
samples on MSDN,
VS 2002 Automation samples

http://www.microsoft.com/downloads/details.aspx?FamilyID=ee1c9710-6df7-4f3f-a5ae
-425a478ddeeb&DisplayLang=en

VS 2003 Automation Samples

http://www.microsoft.com/downloads/details.aspx?familyid=3ff9c915-30e5-430e-95b3
-621dccd25150&displaylang=en

A couple of the samples show how to walk a solution/project generically to
list all the files.  Actually, if you hit alt-F11, go to the macros IDE, and
look at Utilities.ListProj, you'll see the same code.

Bill