Seems like there are several ways to do this. I’ve found to use HttpContext.Current.Request.UserAgent

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Asked: May 25, 20262026-05-25T03:39:47+00:00 2026-05-25T03:39:47+00:00

Seems like there are several ways to do this. I’ve found to use HttpContext.Current.Request.UserAgent

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Seems like there are several ways to do this. I’ve found to use HttpContext.Current.Request.UserAgent, Request.ServerVariables("HTTP_USER_AGENT"), Request.Browser.Platform. Not sure which one is a more correct way to detect the OS version. Also, how do I get a list of the OS version string that client browser may send to web server. With that string, so I can filter it out in the code.