>Since the upgrade of IE 11 on Windows 7, I have seen that the ASP.NET focus code no longer applies. It is not clear if this is no longer supported in IE 11, a combination of a problem between Windows 7 and IE 11 or something that we need to change in our .NET application.
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>Anyone knows something about it?
I recently had an issue with an ASP.NET site not rendering properly on a Windows 2003 server only for IE11. I was able to resolve it adding the browser file indicated in the last answer at
http://stackoverflow.com/questions/17417420/app-browsers-definition-file-for-ie-11.