http://blogs.technet.com/canitpro/archive/2007/08/09/who-wants-a-licensing-advisor.aspxI do! I am the first to admit that licensing can be really confusing but there are some tools that can help you (including the CanITPro team) navigate the waters so to speak. In the virtualization realm there are some calculators which I linked in a previousen-CACommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/canitpro/archive/2007/08/09/who-wants-a-licensing-advisor.aspx#1765372Thu, 16 Aug 2007 18:37:43 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:1765372Kerry Brown<P>The licensing tool only has Vista and Ofice 2007 listed. I understand microsoft wants everyone using thelatest versions but thisisn't the reality. To be a useful tool the licensing advisor needs to be able to work with previous versions.</P>http://blogs.technet.com/canitpro/archive/2007/08/09/who-wants-a-licensing-advisor.aspx#1774049Sat, 18 Aug 2007 07:32:28 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:1774049rodney.buike<p>Hi Kerry,</p> <p>That is a great comment. &nbsp;From my understanding the licenses are backwards compatible, meaning you'd buy the Vista or Office 2007 license but still continue to use the previous version (being Office 2003 or XP SP2). &nbsp;I am not 100% sure but the email has been sent and I will post the reply here once I get a definitive answer!</p> <p>Rodney Buike</p> <p>IT Pro Advisor</p>