CubicExplorer is a fine example of how to make a full-featured, yet lightweight file manager for Windows. It's broken up into three panels: Main navigation window, Navigation tree, and Filter/Preview/Dropstack panel. The Dropstack panel allows you to drag and drop files/folders into groups for temporary quick access.
Jack Wallen is an award-winning writer for TechRepublic and Linux.com. He’s an avid promoter of open source and the voice of The Android Expert. For more news about Jack Wallen, visit his website getjackd.net.