Call a web service through a proxy server in VB.NET

Hello,

I have a desktop application writen in VB.NET.

I am trying to call a web service through a proxy server. I can make the call without the proxy server, but the web server has IP filtering and my IP address has to be loaded into the firewall every time it changes (it's dynamic).

I'm trying to find a way that I can do the call through a proxy server so the IP the request comes from will always be the same. I have access to a proxy server. I just need to know how to route the request through it.

I've tried using the WebProxy object, but the web service I need to call doesn't have a Proxy property.

Is there any way I can route the request from the desktop client through a proxy server to the Web server in VB.NET?