-e: as per title

-mail from MS:

Reference #: 263704
Description of the Problem: [IE 11 Issue] Unity Web Player_V-4.1.1.0 :- Add-on fails to show up in IE. Vendor site cannot detect the installed plug-in

Steps to Reproduce:
-have webplayer installed
1. Navigate to http://unity3d.com/webplayer/
2. Click on Gallery
3. Select any a webplayer demo like Substance demo
4. get error about browser not being supported
5. go to http://cdn2.unity3d.com/setup/
6. see webplayer not being recognized despite you having it installed

Developer Notes to Help Resolve: Unity3d.com is not rendering correctly in IE11 due to a change in the new user-agent string (UA) where the “IE 11.0” token has been removed. In addition, no new tokens are being defined as part of this change since the current IE version number remains available via the “rv:” token. More detail on writing cross-browser code can be found here: http://blogs.msdn.com/b/ie/archive/2010/04/14/same-markup-writing-cross-browser-code.aspx

The updated base user agent string is:
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko