INT 2F U - NETWORK REDIRECTOR - SEEK FROM END OF REMOTE FILE
AX = 1121h
CX:DX = offset (in bytes) from end
ES:DI -> SFT
SFT DPB field -> DPB of drive with file
SS = DOS DS
Return: CF set on error
AL = DOS error code (see INT 21/AH=59h)
CF clear if successful
DX:AX = new file position
Note:   called by DOS 3.1+ kernel
SeeAlso: INT 21/AH=42h

See also: 2F1228

2F1121 - NETWORK REDIRECTOR - SEEK FROM END OF REMOTE FILE