A quick Google using the search argument:
"windows workgroup" setup
yields ~6,740 hits.
The 21st of these, the first hit on my third displayed page, is:
<
http://compnetworking.about.com/od/windowsnetworking/a/mynetworkplaces.htm>
which I believe is what you're looking for.
I could be wrong, of course. You want me to phone and read it to you?
As a matter of fact, many of the Qs asked here have been asked &
answered earlier here and elsewhere. Most often, however, it's just as
easy to post a complete answer as it is to point out the above or even
to provide a pointer to the earlier thread. In this case, however, I
felt that your post asked for a bit much, and did so rather naively.
Who, for example, determines what your threshhold of "RELIABLE" is? And
how hard do you expect anyone here to work to meet it?
Perhaps networking vocabulary is the basic problem here. Trust me, all
you want is the simplest form of "workgroup". Exotica you don't need for
file sharing. Security, your call of course, but if these systems are in
your house, not much of a problem. Wireless? Why bother with just 2
machines, unless the house/office setup is such that running a wire
involves drilling holes in the handcarved wainscoating. And so on.
See my next post for more - that may be VERY HELPFUL!