http://blogs.technet.com/rmssupp/archive/2009/02/21/setting-up-rmsv1-on-windows-2003-x64-feel-the-burn-with-me.aspxSo I have as late been working on an issue involving someone trying to install RMS v1 on Windows 2003 x64 Standard Edition. Of course RMS v1 came in only a 32-bit flavor, but you could get it to run in WOW mode on x64 (With 2008 ADRMS comes in all theen-USCommunityServer 2.1 SP1 (Build: 61025.2)