You might be able to place an acticeX dll (com object) into the webpage to manipulate the clientside database. You would still need a webserver to feed the page to the client and register the dll on the server...
For effort required, I would either go for a full web enabled solution or just build the thing in VB (or whatever).
Bastien
Any one have a techie job in Toronto, I need to work...being laid off sucks!