Perfectly feasible to do this with IIS6.  
  
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/webapp/iis/remstorg.mspx  
  
Permissions should be straight forward to configur.  
  
Just make sure your NAS is not bringing you back to single point of failure  
  
which defeats the purpose of your load-balancing front end...  
  
--  
  
//David  
  
IIS  
  
http://blogs.msdn.com/David.Wang  
  
This posting is provided "AS IS" with no warranties, and confers no rights.  
  
//  
  
"Paul Buxton" <paul@nospamspireite.ndo.co.uk> wrote in message  
  
news:tn46f5o9btkb$.pqe6pkdn3tb4$.dlg@40tude.net...

Very quick question....  
  
How feasible (or reliable) is it to setup a website in IIS where its files  
  
are on a NAS box?  
  
Are there any pitfalls I need to look out for?  I'm thinking permissions  
  
particularly (using ASP.NET).  We have two front end webservers load  
  
balanced, and presently have to update both.  Obviously having both  
  
pointing to a directory on a NAS is going to simply this.  
  
Cheers  
  
Paul