Int 2F Fn 0601  U - Dos 3.0+ Assign - Get Drive Assignment Table           [U]

   AX = 0601h

Return: ES = segment of ASSIGN work area and assignment table

Note:  the 26 bytes starting at ES:0103h specify which drive each of A: to Z:
     is mapped to.  Initially set to 01h 02h 03h....

See Also: AX=0600h,AX=AF14h"WinDOS"