Hi there, I run Samba 3.0.7 as an "NT4" PDC with about 30 clients - a mix of W2K and WinXP. My new boss wants to replace this setup with Active Directory, so our Sendmail server can be replaced with an Exchange Server. I'm having a crack at doing this with Windows Server 2003, and following this guide... http://samba.org/samba/docs/man/Samba-Guide/upgrades.html#id2605434 However, when using the Active Directory Migration Tool (ADMT) to move a user account across (checking the "Migrate SID" checkbox) I get this error... "Could not verify auditing and TcpipClientSupport on domains. Will not be able to migrate Sid's. The procedure number is out of range." I have ensured the Administrator user and password is the same on the 2003 Server and the Samba PDC, and that the user under Samba is a member of the Domain Admins group using the net groupmap command. I'm not aware of what else I need to configure? Can anyone advise me on what I might be doing wrong, apart from moving to Windows from Linux that is :-) Thanks very much.