Certain old industrial or scientific hardware (like telescope drivers or accounting systems) use web-based interfaces that were never updated past the IE era.
However, there are several "pseudo-portable" methods and collections that enthusiasts have used over the years: internet explorer portable old version
Last updated: 2026
While official support ended on June 15, 2022, several community archives and third-party tools provide access to legacy versions: OldVersion.com " Microsoft once provided free
While not strictly "portable," Microsoft once provided free, time-bombed Windows VMs (IE6, IE7, IE8, IE9, IE10, IE11) for cross-browser testing. These VMs run in VirtualBox or VMware Player. They are because they provide the complete, authentic environment. Search: "Microsoft Edge Developer VMs for IE testing" (note: Microsoft discontinued them, but Archive.org hosts mirrors). time-bombed Windows VMs (IE6