>Hi Erik:
>
>That is the situation:
>
>I have two proxies services in my lan, each one listening in different ports.
>One connect the workstations to internet trough one dial-up connection. The other connect to a remote IIS machine(intranet) trough another dial-up connection.
>The IE instance in my app must know the port of the second www proxy service if it is possible, now it assume the default settings of IE.

These settings are not adjustable on the fly. You can set them by manipulating the registry before you call IE though. The proxy settings are stored in:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AdvancedOptions\HTTP\PROXY

As for what settings mean what, you're on your own. Try changing the settings back and forth via IE and observing the changes in the registry.

To access registry info, use the FFC registry class that ships with VFP 6, or one of several registry tools that you can download from here in the files section.