Two databases sharing the same user table?

[sv1cec]

Guys, I have already a vB site running vB 3.0.xx heavily patched.

I am in the process of creating a new, independent site, which will have its own database, but I need to share the user table between the two sites. I know that I can export the existing table and import it in the new database, but what about future members who will register in my original site? I would like them to immediately become members of the second site as well.

Any ideas on how this can be done?

Thanks for any help you can provide me with.