LepCot and Timosoft
An excellent pair of controls available here in the form of the ExplorerListView and ExplorerTreeView. These controls provide full shell namespace support and are easy to use from VB; the samples demonstrate how to provide full emulations of the Folder Browser control and Favourites browser but they would also be great for project file panes and heavily customised file browsers.
Visit the site here:
The code and controls can be found in the Products section of the site.