I've done it and it seems to be working fine (crossing fingers). I got a new 64 bit server, installed Windows Server 2003 64 bit on it, then installed 11.1.0.6 (64 bit) on it, and then started trying to do a RMAN DUPLICATE to the new box, since the docs said this was the easiset way to go. After a week or so of fumbling around, I finally gave and filed a SR with Oracle. Finally they answered back and said even though the docs said it would work, it doesn't due to a bug and to replace the 64 bit Oracle with 32 bit Oracle (same version), and then the RMAN DUPLICATE would work. I tried it and it did work. I don't know about your version, so you may not have the same problems I originally did, but Oracle did know that I was going to be running 32 bit Oracle on a 64 bit Windows OS. Hope this helps a bit. -- -- Bill Ferguson -- //www.freelists.org/webpage/oracle-l