Type the above in your text editor and save it as "version.avs".
You now have a script that can be opened by most AVI players in your machine: Windows Media Player 6.4 (or higher) will play it; so will Media Player Classic, VirtualDub, VirtualDubMod and many others (see this list of AviSynth compatible programs on Wikipedia). This is done through the magic of frameserving.
So far as these programs care, your text document is an AVI file.
You should see a small video message like this: