When communications protocol are changed we inform IFS Enterprise Explorer by changing server.xml.
Open server.xml in your favorite editor and change the XML attribute connectstring and ifswebUrlBase of the element configuation to https://. Save the server.xml.
Note: If you deploy IFS Enterprise Explorer from another server then the one running the web server for Extended Server, you don't need to do anything else.
Run F1Mage and re-sign IFS Enterprise Explorer with the new deployment URL. See ClickOnce Deployment