What's the best way to test cross-browser compatibility?

Question

Since the portable versions of Internet Explorer are no longer supported (and never fully worked) I\'m trying to find a way to test sites in a number of different browsers.<

Answer 1

Like Flakron Bytyqi suggested, the easiest way is to use IETester or similar software. Using IETester for a year, I never saw any difference between its IE6 implementation and the rendering by real IE6.

Now, having multiple virtual machines can be a good idea, since:

• You have to install three VM only,
• You may test other browsers. For example, install side by side IE6, Firefox 2 and Opera 8,
• There is no doubt: you are using real browsers, so everyone using the same browser will have the same result if the same browser options are specified.

Since installing three VM and buying three Windows licenses is not funny, I personally suggest using IETester, as said before, or using services of companies like Litmus (but it's true, you can't test functionality).