I recently tripped on a need to change the Useragent string for IE11 because of an older DotNet control that I was using and was no longer in development. Again this is not my solution, but it worked for me and I thought I would share it with the world. Since it is not my solution, here is the original link [ Answer ]
<rewrite>
<rules>
<rule name="Change IE 11 User Agent to IE 10" enabled="true">
<match url="(.*)" />
<action type="None" />
<conditions>
<add input="{HTTP_USER_AGENT}" pattern=".trident\/[789]" />
</conditions>
<serverVariables>
<set name="HTTP_USER_AGENT" value="Mozilla/5.0 (compatible; MSIE 11.0; Windows NT 6.2; Trident/7.0)" />
</serverVariables>
</rule>
</rules>
</rewrite>
To make this work, you need to add the variable “HTTP_USER_AGENT” to the rewrite module in IIS. If you do not, you will be told to by the error returned in IIS. For instructions for adding the variable click the following: [ link ]
Andrew Pallant (@LdnDeveloper) has been a web, database and desktop developer for over 16 years. Andrew has worked on projects that ranged from factory automation to writing business applications. Most recently he has been heavily involved in various forms for ecommerce projects. Over the years Andrew has worn many hats: Project Manager, IT Manager, Lead Developer, Supervisor of Developers and many more - See more at: http://www.unlatched.com/#sthash.8DiTkpKy.dpuf
