Int 21/AH=19h

DOS 1+ - GET CURRENT DEFAULT DRIVE

AH = 19h

Return:
AL = drive (00h = A:, 01h = B:, etc)

Note: Novell NetWare uses the fact that DOS 2.x COMMAND.COM issues this call from a particular location every time it starts a command to determine when to issue an automatic EOJ

See Also: AH=0Eh - AH=47h - AH=BBh

Category: DOS Kernel - Int 21h - D

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