How Can I Dynamically Change the User Agent of a WebBrowser Control in Windows Forms?

Overcoming the WebBrowser Control's User Agent Limitation

In a typical Windows Forms application, altering the UserAgent of the WebBrowser control has proven challenging. While the original approach using UrlMkSetSessionOption initially succeeds, its inability to modify UserAgent beyond the first instance remains a nuisance.

A More Dynamic Solution

Fortunately, a more flexible solution exists. For scenarios requiring multiple UserAgent changes, a simple but effective method involves utilizing the Navigate method of the WebBrowser control:

webBrowser.Navigate("http://localhost/run.php", null, null,
                    "User-Agent: Here Put The User Agent");

By providing a customized User-Agent within the Navigate method's headers, you can effortlessly change the UserAgent for each web page visited. This approach not only solves the issue of static UserAgent values but also provides greater control over your web browsing experience.

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