How do i have IE 7 and IE8 running at the same time?

I am a web developer and I need to have both running for testing purposes.|||As the above posted stated, you can't. Most IE versions are just updates of their counter-parts.





For instance, if you were to uninstall IE8, it would uninstall all the additions that IE8 added and roll-back to IE7. The biggest difference you will find for the IE line of browser is IE6 to IE7 where "Tabbed Browsing" was added.|||You can't, IE8 is update for IE7,


so it's like have 2 IE7, (one with update)





You can unistall and install it again (but it's not a good thing to do.)





And i think; there is no different btween IE7 %26amp; IE8.