>Hmm... Well, if I don't have a web server running on the client, won't I have the problem of having to write two different client apps?
>

A web server on a client is not considered a client app. You would be better off creating 2 seperate user interfaces, one for the client machine written in VFP or VB and one for the web server. Both of these applications could use the same COM components. This, after all, is the basis for multi-tier development.