We work in a field where there is hostility to Web-hosted databases. We developed an on-line version of our app, but sales were dismal. Plus, our app needs to

We work in a field where there is hostility to Web-hosted databases. We developed an on-line version of our app, but sales were dismal. Plus, our app needs to access databases on the user's local disc drive, which (as far as I understand) is hard with Web-based apps?