INT 2F U - NETWORK REDIRECTOR - OPEN EXISTING REMOTE FILE
AX = 1116h
ES:DI -> uninitialized SFT
SS = DOS DS
SDA first filename pointer -> fully-qualified name of file to open
STACK: WORD file open mode (see INT 21/AH=3Dh)
Return: CF set on error
AX = DOS error code (see INT 21/AH=59h)
CF clear if successful
SFT filled (except handle count, which DOS manages itself)
STACK unchanged
Note:   called by DOS 3.1+ kernel
SeeAlso: AX=1117h,AX=1118h,AX=112Eh,INT 21/AH=3Dh,INT 21/AH=60h

See also: 2F1106

2F1116 - NETWORK REDIRECTOR - OPEN EXISTING REMOTE FILE