EXPLANATION This message should occur only on a down-level computer. Any action to correct the problem should be performed ...

EXPLANATION    This message should occur only on a down-level computer. Any action to correct the problem should be performed on that computer.  The LAN Manager device driver NETWKSTA.SYS could not be installed.    ACTION    Another error message that contains a more detailed explanation of the error, should have been displayed prior to this message. See that message for the cause of the problem.