INT 2F,1 - Multiplex Interrupt - Submit file

AL = 01

AH = 01 resident portion of PRINT

02 resident portion of ASSIGN

06 get pointer to ASSIGN drive translation table (undoc DOS 3+)

10 resident portion of SHARE

B7 resident portion of APPEND

C0-FF reserved for user applications

DS:DX = pointer to a 5 byte packet containing an priority byte

and a DWORD pointer to an ASCIIZ filename

DS:DI

on return:

ES = segment of ASSIGN work area and assignment table (AH=6 only)