A bit of a random post.. but thought I would toss it out there.

Another one of those DCR's .. a little old but again - may have slipped your radar.

http://support.microsoft.com/default.aspx?scid=kb;[LN];829885

and more info here:

http://www.microsoft.com/windowsserver2003/upgrading/nt4/tooldocs/msfsc.mspx

spat