windows, set computer(browser) default web proxy

I want to be able from .NET to set computer default web proxy (override pre开发者_开发技巧vious default proxy settings in IE). From the documentation of WebProxy class in .NET it seems that it only affects proxy settings for WebRequest.

Is there a way to do this ?

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There is an option to play with the registry (Here)

Or you can use API32 for this Here - recommended