Just recently, we learned about a way to run non-Windows Store apps on a Windows RT device via a circumvention method that requires tinkering with the portion of the RAM that instructs Windows RT on whether it should run unsigned code or signed code.
A jailbreak tool was also recently released which is based upon the circumvention method discovered recently. The jailbreak tool is simply a batch file that does most of the work for you so you can run unsigned apps, but will need to be re-applied every time the system is rebooted.
Immediately after, we learned that popular desktop apps such as 7Zip, Putty, TightVNC, and Notepad++ have already been "ported" over to work on Windows RT, thanks to this circumvention method. We have just received word that Quake, a first-person shooter video game, has also been made to work on Windows RT, along with a bittorrent client MonoTorrent and the popular desktop customization tool Rainmeter.
This comes as no surprise as more and more applications are being made to work on Microsoft's Windows RT operating system. Since the Surface RT (powered by Windows RT) can only run Windows Store apps, many developers and hackers have spent a lot of time to get these apps working. All it takes is time and effort and we will continue to see more applications ported over to work on Windows RT. Microsoft had hinted at a fix to prevent this circumvention method from being used, but that fix has yet to be released. Regardless, we believe a fix will not stop these talented developers/hackers.
Credits to Vihar and Netham45 for the details and their hard work!