7 Sidebar emulates the sidebar of Vista in Windows 7.
No setup is required. Just start the gadget and you have a sidebar!
Download 8GadgetPack to use this on Windows 10 / 8.

Main Features

  • The sidebar holds any gadgets and stays always visible, even if a window is maximized
  • It can be configured to hide automatically
  • Supports many languages, multiple pages, 64-bit, high-dpi, aero-theme and skins
  • Any open window can be shown in a small preview gadget. The thumbnails can update even if the window is minimized.
  • It's completely free