Set a proxy individually for each WebBrowser?

I just found out how to change proxies without restarting the WebBrowser control, but that seems to set it for ALL WebBrowser controls on my form. I want to be able to set a different proxy for each control. Is this possible?

If not, is there any tricks I can do to get a开发者_如何学Pythonround this? Maybe some kind of daemon that watches a port and translates that request into a proxy request? For example:

Request on port 12345 -> Connect to url on port 80, but use proxy 1.2.3.4:8080
Request on port 12346 -> Connect to url on port 80, but use proxy 6.4.5.1:8080

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In our application we resolved this launching every browser in a separate process and reparenting it. We don't reach to set a proxy for all webbrowser in the same process.