[BAT file] Comment

REM Comment line 1
REM Comment line 2
:Label1
:Label2
:: Comment line 3
:: Comment line 4
IF EXIST C:\AUTOEXEC.BAT REM AUTOEXEC.BAT exists

are all allowed.
However,

IF EXIST C:\AUTOEXEC.BAT :: AUTOEXEC.BAT exists

will result in a Syntax error message.


http://www.robvanderwoude.com/comments.php