Yet another file-open dialog box extender: AcFoldershttp://www.svarsoft.com
It has useful, additional tools, like categorized bookmarks, a file search tool (embedded directly to the dialog box), and a file/folder recall tool. Supported is Drag and Drop - just drop your favorite folder to the toolbar in the selected category. It works with Microsoft Office XP Dialogs (with some limitations), browse for folder dialogs, Windows Explorer Favorites. Very easy to use. It also has 16 great looking skins. Save your time when browsing folders, and opening files with AcFolders.