If you are installing TAS on an AIX® platform, you must enable the multiuser kernel driver after installing TAS. This step provides support for the TAS SMB multiplexor, which is required when using Rational® ClearCase® with TAS on AIX. You cannot enable or disable the multiuser support from the Framework interface. You must use the command-line. For details about multiuser support on AIX platforms, see the TAS Administration Manual.