Because of the way that web sites are normally implemented, it will most
likely appear that only one user is accessing the database. See my previous
answer to "Interface for Multiple..." for information on factors in
performance -- all the factors are the same, but details of a given factor
will differ in multiuser and web access.
You aren't likely to be able to successfully run an intranet with a website
in your peer-to-peer network.
And, a final caution, to provide useful functionality, you will put far more
work into a website accessing a Jet database than into an Access application
using that same Jet database.
Larry Linson
Microsoft Access MVP