No. To goto 2003 FFL (aka FFL2), all domains need to be DFL2 (aka 2003 Domain Functional Level).
Thanks, Brian Desmond br...@briandesmond.com c - 312.731.3132 From: Senter, John [mailto:john.sen...@etrade.com] Sent: Tuesday, February 03, 2009 2:54 PM To: NT System Admin Issues Subject: 2003 forest functional level I am having a complete brain fart today about this. Can a Windows 2003 forest be taken to 2003 functional level if a child domain is still running in Windows 2000 native mode? I was thinking all domains in a forest have to be at 2003 mode before the forest can be stepped up. Thanks ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~