在我的应用我通常在同一个解决方案的所有相关的项目。但是，当我需要使用跨应用程序的项目，我更换了一个dll引用该项目。

In my applications I usually have all related projects in the same solution. But when I need to use projects across applications I replace the project for a dll reference.

由于我使用Subversion我解决了通过增加一个外部属性复制DLL的问题，做我的libs文件夹，引用的DLL的版本。

Because I use Subversion I solve the problem of copying the dll by adding an external property do my libs folder, referencing the build of the dll.

如果外部dll是非常往往比你可能需要一个持续集成系统来处理，对于你更新。

If the external dll is updated very often than you probably need a continuous integration system to handle that for you.