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.  You referred to a nonexistent drive, directory, or  filename, or you typed the command incorrectly.    ACTION    Check the spelling of the source or pathname you have typed.  Remember to precede computer names with two backslashes, as in \\computername.