The Windows Forms FileDialog class is the common base class for the OpenFileDialog and SaveFileDialog components. You can make changes to the FileDialog class that affect the appearance and behavior of these dialog boxes, depending on the version of Windows the application is running on.
How To: Opt Out of File Dialog Box Automatic Upgrade
Describes how to opt out of a style automatic upgrade to a file dialog box.
How To: Add a Custom Place to a File Dialog Box
Describes how to add a custom file location to a file dialog box.
Known Folder GUIDs for File Dialog Custom Places
List the folder names and their associated GUIDs.