REM--Notes
 
Using the ECHO command to display comments
 
The REM command does not display comments on the screen. You must use the
ECHO ON command in your batch or CONFIG.SYS file in order to display
comments on the screen.
 
:m550a
Restrictions on characters in batch-file comments
 
You cannot use a redirection character (> or <) or pipe (|) in a batch-file
comment.
 
:m550
Using REM to add vertical spacing
 
Although you can use REM without a comment to add vertical spacing to a
batch file, you can also use blank lines. MS-DOS ignores the blank lines
when processing the batch program.