>Ok then,
>
>The server app and client app can share an external file. That could work.
>
>Let's just say that the server app writes the jpg file names, collected by the activeX control, to an xml file or dbf. What event can fire so that the client knows to go and read the xml or dbf that the server wrote to? And... and thoughts on how the client registers intself with the server app.

For (a little) background reading you might want to look at the thread starting with message #729042.

I also have some Win32 code that implements File Event Notification. Using this you might be better with a common single table for all request from the Clients to the Server, but discreet tables for responses.