Engineering firm still needs OS/2 Warp for some odd apps. Their network is Windows 2000 AD controllers in mixed mode. There are some Windows 2003 member servers. We want to move to Windows 2003 but are quite sure that would break support for OS/2 Warp on the network. (SMB signing security issue I think?) We set up a test environment and it did not work in Windows 2003. The OS/2 machines are working in the WIndows 2000 AD mixed mode. One question I have is "Can we at least switch to WIndows 2000 AD native mode"? I have been told by these folks that the reason they are in mixed mode is to support the OS/2 machines but that does not make sense to me. My second question is "Can anyone definatively tell me that OS/2 Warp cannot work in Windows 2003 AD domain"?

hopefully an OS/2 expert will post soon as I know little regarding OS/2.

Native Mode vs Mixed mode is primarily concerned with different versions of Windows, not other OS's. For example, if you had some NT domain controllers, or Exchange pre 2k, you would run mixed mode.

My understanding is that other OS's come into play if they are involved in DNS or LDAP. Then you want to stay mixed mode. This is merely to limit some of AD's advanced functions in this area, so they aren't incompatible with other servers.

Having said that, the "advanced" functions are really of use only to very large networks. Personally I can't really see the advantages of Native mode, such that one would be desparate to change.

Native mode has:

group nesting
Universal security groups
SIDHistory
drag and drop between groups

So...are you chomping at the bit to use these functions??

If in doubt, just keep your windows servers in mixed mode.

NOTE: OS/2 is now developed as eComStation. You can consult the online community of eComStation, even look at testing the old apps on it.

http://www.ecomstation.com/community.phtml

"If we don't succeed, we run the risk of failure." - BILL CLINTON

http://www.jacco2.dds.nl/samba/samba2.html