INT 2F - JAM.SYS v1.10+ - "Lock" - LOCK COMPRESSED DRIVE AX = 5204h DL = drive number (0-default, 1-A:, etc.) to lock Return: AH = status (00h,01h,04h,05h,08h,09h,0Bh,0Dh) (see #02835) AL = host drive error code (see #02598 at INT 2F/AX=0802h) SeeAlso: AX=5205h, AX=5206h, AX=5207h