Multiple Versions of Internet Explorer on One System
May 11, 2012
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It’s really frightfully simple: just put an empty file named
IEXPLORE.exe.local into the directory of the old version of Internet Explorer that you want to run. That’s all. I don’t know how far up it works, but it works with IE6 and older under XP. Two things:
- You still can’t install an older version when a newer one is already there. You can keep an older version when you’re upgrading, or transfer an installed version from another system.
- There might be other incompatibilities, since upgrading IE replaces a lot of DLLs. After upgrading form IE6 to IE8, IE4 would no longer run, while IE3 still does.
Unfortunately, it doesn’t quite work with IE8 any more. IE8 installs a new rendering engine that will be used by IE6 as well, so all you get is the old interface. Luckily, IE8 can be uninstalled. Now IE4 runs again 🙂