Are you trying to use Filesys::SmbClient to do the moves on the XP box? if so, that is silly you have direct access to the CIFS shares (provided by samba on both AIX servers) from the XP box natively. Try working on the path \\<hostname>\share. If you are talking Filesys::SmbClient on one of the AIX servers (so you can get rid of the XP man in the middle, you will need a compiler.