Microsoft realized that many sites would have a heterogeneous mix of Windows and Unix servers. The Services For Unix package contains a feature called NIS which includes the LDAP Posix schema. This schema defines interoperability parameters for Windows and Unix, such as UID, GID, home directory, default shell etc. Active Directory will use the Posix schema if installed. Thus you get UIDs and GIDs that cause no conflicts between Windows and Unix, Linux, and other flavors. -- Craig C Spurgeon linuxguru@quiknet.com I set about one day to make a list of the innovations that are attributable to Microsoft. Once I realized that Ctrl-Alt-Del was handled in the BIOS, it turned out that there aren't any.