A collegue of mine at work( one of our network engineer has suggested making a BDC for an NT 4.0 domain on a 2003 server. I have never heard of this before. I thought BDCs don't exist for windows 2000 server and windows server 2003 . He said it would be possible in mixed mode. He said that's how he's migrated before. Is he pulling my leg or does he know something I don't and is using wrong terminology?