>I have a form in my program that allows the user to enter a URL, click a button, and have the site come up in their default Internet browser. On one computer, their default browser in Netscape Communicator 4.7 (downloaded and installed last Thursday).
>The button is based on the _hyperlinkcommandbutton class from the _hyperlink class library found in VFP, and it is their code that is running. The registry entry HEKY_CLASSES_ROOT\http\shell\open\ddeexec\Application is checked to see what my default browser is (in this case "nsshell"). If it is not "iexplore" (which is Internet Explorer), it calls the ShellExecute API function, passing it the URL.
>

Without digging through the FFC code, have you tried just a simple ShellExecute? What does that do?