INT 2F U - NETWORK REDIRECTOR - CHDIR
AX = 1105h
SS = DOS DS
SDA first filename pointer -> fully-qualified directory name
SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
AX = DOS error code (see INT 21/AH=59h)
CF clear if successful
CDS updated with new path
Notes:  called by DOS 3.1+ kernel
directory string in CDS should not have a terminating backslash unless
the current directory is the root
SeeAlso: AX=1103h,INT 21/AH=3Bh,INT 21/AH=60h

See also: 2F1101

2F1105 - NETWORK REDIRECTOR - CHDIR