INT 2F U - NETWORK REDIRECTOR - QUALIFY REMOTE FILENAME
AX = 1123h
DS:SI -> ASCIZ filename to canonicalize
ES:DI -> 128-byte buffer for qualified name
Return: CF set if not resolved
Notes:  called by MSDOS 3.1+ kernel, but not called by DR-DOS 5.0 unless the
filename matches the name of a character device
called first when DOS attempts to resolve a filename (unless inside an
AX=5D00h server call); if this fails, DOS resolves the name locally
SeeAlso: INT 21/AH=60h

See also: 2F1221

2F1123 - NETWORK REDIRECTOR - QUALIFY REMOTE FILENAME