NetSelector allows to change network settings like IP address, DNS, Gateway, network shares, network drives and proxy servers in one click. The proxy server option supports different browsers and is extendable via plugins.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.