Direct Folders - Access your folders from anywhere
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Folder Menu - Folder Menu - a tiny, portable folder switching tool and file launcher.
Beyond Compare - Beyond Compare allows you to compare files and folders.
FlashFolder - FlashFolder is an open source tool that extends the file-related common dialogs (e.g.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.