When you start downloading Angry Birds you can already see the different application programs which are available. There are different versions of the same application. For example, the English version may be very different from the French version. Because of this there may be issues with which operating system you have to use in order to run the game. If you want to be able to play Angry Birds, you will need to be using an operating system that supports Windows. The best choice would be Windows XP.
But why would you want to download an application? One reason could be that you like the game. Another reason could be that you have a friend who has downloaded it and they want to play it with you. And the last reason could be because you just have some free time on your hands and you want to try it out. Sometimes people will use the application and then decide they want to go back to the website they downloaded it from. You may not get what you wanted when you use a free software like this.
When you start playing Angry Birds, you can easily see that it can run on Windows. You may not be able to make the software work on your machine but you can run it on other computers that do run on Windows. This means that if you ever get angry Birds and you have a Windows machine, you can always use the same application on it. Then, when you want to install a new version of it you will simply download the correct file for the version of Windows you have and install it. When you make use of this type of software, the version of Windows that you have on your computer will never matter because you can use it on any system.
