How to use internet explorer in Mac air (Mavericks OS)

lol. Let's all not so quick to judge. The Canadian Govt websites are full of those "proprietary" software that doesn't work fully in Chrome, Firefox or Safari.

It didn't even work with the latest version of IE. Many vendor apps that I installed were written in the latest .Net technology but with the leading edge comes bleeding edge, as Microsoft often release the latest and greatest for a year, and "forgot" to write the API for their own older technology. I can tell you that ASP.Net using .Net 4.5 framework doesn't work with MsOffice API, .Net, ASP and MsOffice are all Microsoft product. The IT industry is in a sad sad state, conglomerate is got big chunk of market share that they can push new software without thinking of compatibility. Release now, fix the bug and do the connection later. Really, "Don't be evil" should be the motto for every company. Only thinking of profit is evil in this case.