In Linux, you can...

Run Internet Explorer. Why would you want to do this? Well, normally, you would not, but there are some enterprise applications that stubbornly, and stupidly, insist on running in IE. I avoid such circumstances, and I lobby to undo such decisions when I can. But if you need to run IE, well, it's like having diarrhea and really having to go ... you gotta do it.

Or, if you are in the web design biz, this could be useful to test sites. You really have to test your sites on IE because, so often, Microsoft IE breaks web sites that were not designed in a way that panders to Microsoft's screwy softeware development philosophy ("We Break It, You Pay For It")

But how, you ask, how do you do that?

Instal IEs4Linux. Well, there are other ways to do it, like installing Wine or some version of wine (a windows emulator-sorta-thing). But IEs4Linux may have some advantages if all you want to do is run IE.

If you need it, you can get it here. You will have to have Wine and cabextract installed, then you use a supplied script to install IEs4Linux. I have not done this, and I cannot tell you how well it will work, but I've read positive reviews of it.

Good luck...