XP & ME: lost internet connect sharing on ME

I have had my 2 computers networked for almost 2 years with
no problems until now. Recently my client Computer(ME) lost
thr residential gateway connection with the host
computer(XP). I still have them networked and I can use the
internet on the XP. After trying several methods to get
the Internet working on the client(ME) and failing on all
attempts, I decided to re-use the Network Setup Wizard that
comes with XP. I intalled the floppy into the ME computer
to setup the ICS connection. Everything appeared ok until I
retarted the computer (ME). I get the following error
messages: An error occured loading
C:\windows\system\upnp.dll has not been installed or
corrupted. When I hit ok I get the next error message:
error loading C:\window\system\hnetwiz.dll a routine
initialization failed. Needless to say I still can't get
on to the net with my client(ME). I use a dial up
connection and D-link to network my computers.
Also on my client, if I use the RUN command and type in
"winipcfg" i get the following error: Failed to initialize
WINSOCK.
Thanks for any help that you can supply
..