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====== Int 21H, AH=37H, AL=01H ======

===== Version =====

2 and higher

===== Brief =====

SET SWITCH CHARACTER

===== Family API =====



===== Input =====

        AX = 3701h
        DL = new switch character

===== Return =====

 AL = status
            00h successful
            FFh unsupported subfunction
===== Macro =====


===== Notes =====

documented in some OEM versions of some releases of DOS; DOS 2.x had a SWITCHAR=c setting in CONFIG.SYS
          
supported by OS/2 compatibility box and Novell DOS 7
        
ignored by MS-DOS 5+ and DR DOS 3.41-6.0; DR DOS 6.0 and Novell DOS 7 leave AX unchanged

===== See also =====

AX=[[en:docs:dos:api:int21:37:00|3700h]]

===== Note =====

Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]

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