Since Internet Explorer's Compatibility and Enterprise modes are not supported by AR System Mid Tier 9.1.02. can a meta tag be set to force the browser to use a specific version of IE?

This knowledge article may contain information that does not apply to version 21.05 or later which runs in a container environment. Please refer to Article Number 000385088 for more information about troubleshooting BMC products in containers.

With regards to Meta tags on the headers of forms, Mid Tier adds the meta tag to all web pages based on what is set in the config.properties parameter:  arsystem.emit_X_UA_compatible_mode=Edge.  Mid Tier has no knowledge if the browser is in compatibility mode at the point when it’s generating DHTML for the form.   Compatibility mode in IE means run as if the browser is IE 7.  This setting is a browser level setting and cannot be overwritten by a meta tag on the web page.    Thus,  even if  there is a meta tag on your web page saying Edge mode(highest version available) should be used, the browser is going to ignore the tag and run  as if it’s IE 7.

Further information from Microsoft with a flowchart explaining the IF/Then of Meta tag and Compatibility View Settings
https://msdn.microsoft.com/en-us/library/ff955410(v=vs.85).aspx


For more information concerning Mid-tier support of the compatibility view, see this more detailed article:  
Remedy Mid-Tier support for IE Compatibility View