There might be times when you feel the need to run a Windows OS straight from the cloud. The reason could be anything. You might have moved to Linux or Mac recently and is not yet that conversant there and wish to go back to the Windows from time to time. Else, you are using a Linux/Mac run system for some reason and want work in the comfort of the good old Windows. Whatever may be the reason if you need to run a Windows OS from anywhere, all you need is  Windows4all, a Silverlight based virtual operating system.

Windows4all simulates the desktop OS environment inside your web browser and runs the applications within Silverlight’s security sandbox. Currently it supports 14 applications including File Explorer, Internet Explorer, Video Player, Rich test editor, RSS reader, Virtual, Notepad, Paint, Twitter client, Flickr viewer, Youtube viewer, Chat, Calculator and Games like Chess, Solitaire and Spider.

In a nutshell Windos4all provides you the ability to access you familiar interface from anywhere , without any installataion and for free. Pretty cool.