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.  Local security could not start because the user accounts database file, NET.ACC, is missing or damaged and no backup file exists on the hard disk.    ACTION    Restore NET.ACC from a backup. The backup file will be named either NET.ACC or NETACC.BKP. Then restart the computer.    If there is no backup, reinstall LAN Manager using the Setup program.