I have always struggled in making my websites and web-based systems look good in Internet Explorer. To cover all versions of IE, i have to install multiple copies of Virtualbox with Windows XP installed, each with different version of IE.
I just came across this neat service called Modern.IE which is a free by Microsoft which will enable you to test your systems on various versions of Internet Explorer.
You will have the option to download VM with preinstalled Windows version of your choice on Vagrant, Virtualbox, HyperV, VPC, VMware or Parallels format! But the catch is, all VMs are only valid for 90 days only. Well, better than nothing 🙂