I would *not use Internet Conn Sharing, it's clunky as heck. You can get a
very cheap travel router for about $40 that lets you do this. Or, you can
connect with one other computer using ad hoc mode, but it's a pain to
configure. In fact, stringing an Ethernet cable between laptops is easier
and faster. (Heh, especially if you are in the same room.) MS auto-senses
the connection and enables peer networking...
I'll assume your wall has an ethernet connection into a corporate LAN.
What's an ABG card? Does it have a manufacturer and model number?
The right way to do this is to get a wireless access point or a
wireless router setup as an access point. That plugs into the wall
and everyone connects via wireless to this access point. The problem
is that most corporations, companies, government agencies, and
individual frown upon non-IT people doing this without informing the
high command. What you're effectively doing is inviting anyone
outside the building into what I guess is your company's LAN. This is
not a very good idea for security and tends to attract hackers like
myself. You might also find that the company employee manual
specifies that do-it-thyself expansion of the network is punishable by
firing, death, or both. Before you plug anything into the wall that
isn't authorized, I suggest you ask someone in IT first.