REM Enables you to include comments in a batch file or in your CONFIG.SYS file. The REM command is also useful for disabling commands. (You can use a semicolon (;) instead of the REM command in your CONFIG.SYS file, but not in batch files.) Syntax REM [string] Parameters string Specifies any string of characters -- the command you want to disable or the comment you want to include. Related Command For information about displaying messages, see the command.