使用MSBuild访问同一解决方案中的第二个项目

I'm new to MSBuild, and am learning as I need to know how to do things. Currently, I am working form the MSBuild file that is generated from the Web Deployment Project extension for Visual Studio. I have been ab;e to access and manipulate files which are directly in my Web project by creating properties form this block of XML:I'm new to MSBuild, and am learning as I need t