No, you cannot install any version of IE alongside another version of IE. It's not an officially supported configuration. Microsoft supplies images for testing

No, you cannot install any version of IE alongside another version of IE. It's not an officially supported configuration. Microsoft supplies images for testing purposes, and that is the preferred route to take. If you want side-by-side testing, you could use the PPBs (Platform Preview Builds) instead from http://ie.microsoft.com/testdrive/ http://ie.microsoft.com/testdrive/