BizTalk 2013 R2 ESB Management Portal - Default IIS Configuration is Faulty - Unhandled Exception Error - HTTP Activation 28. January 2016 JoshKealiher@phidiax.com BizTalk / Enterprise Service Bus, Phidiax Technology, WCF / Services / AppFabric / IIS (0) We were tasked with installation of Microsoft BizTalk 2013 R2 ESB Management Portal. Among a number of issues that plagued the installation and configuration, we discovered that the default IIS configuration is faulty and does not work as expected. [More]