如何在多个项目中使用的解决方案中定义Makefile样式的变量（VS 2008）？

I am working in a Visual Studio 2008 solution with multiple C# projects and some C++ projects and want to use post-build events to execute some 3rd party vendor command line tools. These post-build events are needed in several projects.I am working in a Visual Studio 2008 solution w