No, see, you don't understand: the web developer just needs to install a virtualization environment, into which they register for, download, and install a version of an operating system that may or may not (I haven't checked) expire in some not-too-distant future. Then just add the relevant -ms- tags to your CSS and tweak as needed in order to be compatible with the very latest versions of IE (earlier version users: you're on your own). 

See? Simple!