My (C#, .NET 3.5) application generates files and, in addition to raising events that can be caught and reacted to, I want to display the target folder to the user in a form
LogicNP Software has two controls (FileView and ShComboBox) that do what your looking for: http://www.ssware.com/fldrview.htm
You can download a trial from their page, however it's ~130$ for the license.