Browser User Agent string with JSUA

Question

Visitors to our company web site have issues with the javascript we're serving. For any such javascript error, we get an email detailing the issue.

What is odd with these browsers are their user agent string. There are minor differences in the details, but in general they look like:

Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko (JSUA: Mozilla/5.0 (Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; rv:11.0) like Gecko)

Am I right to say that it is an IE11 on Windows 7?

I've tried to figure out what the JSUA part means. Is it a browser run inside a javascript rendered container on a Media Center computer or what should I make of it?

Answer 1

I don´t think this user agent string is valid. Some token are duplicated:

Mozilla/5.0 
Windows NT 6.1 => Win7
Trident/7.0 => IE11
rv:11.0

and Microsoft had cleaned the user agent string with IE9. If you found there any .NET token, something is wrong and i would categorize this user agent string as a bot.