http://blogs.technet.com/tliles/archive/2007/05/03/sccm-2007-setup-on-windows-2003-r2-sp2.aspxI was recently putting together a demo lab for the latest public release of SCCM 2007 (Beta 2) and could not get past the following; • MS06-030: Vulnerability in Server Message Block could allow elevation of privilege ( http://go.microsoft.com/fwlink/?LinkId=79239en-USCommunityServer 2.1 SP1 (Build: 61025.2)