Now, HomeZIX's C# scripts can play WAV files. You can utilize the feature to alarm, notify events, or just simply fun:
http://www.youtube.com/watch?v=IVK8BlxloyA
Code template is also added to the Utilities section in the C# editor for convenience. It would save time to write down the same piece of code to detect switch level change. C# programming is even easier with HomeZIX.
Advanced C# programmer can certainly enjoy the serial and TCP/IP programming within the C# script. This opens the door to the outside world: A/V devices, IR controller, etc..