ReactOS is an excellent program for operative system of free license based on Windows, with quality and compatible with controllers and applications for Windows NT.

The program counts with a system similar to traditional Windows, that is why it is easy to use, but what is important is that you may install and execute all applications that have support for NT.

In one word, the program objective is to achieve binary compatibility with applications and device drivers for NT and XP system.

You have to bear in mind that the program is in alpha state, so it does not have everything needed for everyday.