I'm not sure whether or not this is pertinent to the question, but what's the relationship (if there is one) between the folders & DLL's? The app I'm working with is one solution with 9 projects, organized as folders. One project is the .exe while the others are DLL's. I assumed (based solely on the evidence in my app) that organizing them into folders was part of the process of splitting the app into separate DLL's.
Yes what you are saying is correct, but that is at the top level of a solution. He is talking about folders you can create withing a project (not a solution) to organize your code. Check the screen shot, it shows 3 projects in the solution, but the vbdotnet project has folders to seperate its classes and forms. You can drag items between folders (even between projects) and it will move them on the hard drive (just dont drag a vb form into a C# project.. it will work, but it wont compile )