INT 2F - SMARTDRV v4.00+ - GET DEVICE DRIVER FOR DRIVE AX = 4A10h BX = 0007h BP = drive number (00h=A:) Return: DL = unit number within device driver ES:DI -> device driver header for drive (see #01646) Note: this function is also supported by PC-Cache v8.0. this call is reported to always return the driver header of the standard block driver (A:-C:+) for SmartDrive v5.00 from MS-DOS 6.2 SeeAlso: AX=4A10h/BX=0000h,AX=4A11h/BX=0003h,AX=4A11h/BX=0004h