Int 21 Fn 37D7  - Diet V1.43e - Set Temporary Directory Names              [k]

   AX = 37D7h
   BX = 899Dh ('DI' + 'ET')
   DS:DX -> ASCIZ name of temporary directory (max 61 chars)
       0000h:0000h for current directory

Return: AX = 0000h

Note:  the specified directory name must include a drive letter and end with
     a backslash

See Also: AX=37D0h,AX=37D6h