Windows 7 comes with 14 different sound schemes. If you are bored with these default sound schemes, here is a freeware “iFX Seven Sound Creator” which allows you to create your own customized sound scheme.

How to create custom sound scheme?

Select your sounds.

How should they be made: using iFX sound recorder, using audacity, downloading sound …

BingPaper is a small and useful application released by Microsoft Codeplex. It downloads the latest Bing image and sets it as your wallpaper.
This application is written in C# using WPF. The Source Code is available for download here.

BingPaper has a few customization options as well. It allows you to set wallpaper in three different modes …