Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

SYS1664
 
Explanation
 
The /l parameter was specified but there is not enough room to create the
log file.
 
Action
 
Press Ctrl+Break to end the BACKUP log file procedure or press Enter to
continue without adding more entries to the log file. Delete any unwanted
files from the disk and retry the command.