实用的多种精美控件，可将其添加到其它项目中，直接引用，根据自己的需要，改变属性。-A variety of beautiful and practical controls can be added to other projects, direct reference, according to their needs, change properties.

OutlookBar源码及示例,包含UtilityLibrary类中的代码-OutlookBar

一个封装了数百个WindowsAPI的C#类库源码 很有参考价值-A package of hundreds of C# class library WindowsAPI useful reference source