Int 60 Fn 0003  - Rifs - Client - Unmap Drive                              [N]

   AX = 0003h
   BL = drive to unmap

Return: CF clear if successful
   CF set on error

See Also: AX=0000h,AX=0002h,AX=0004h,INT 21/AX=5F04h,INT 21/AX=5F06h"STARLITE"