A little toolbar that hides conveniently as a little button on the side of the screen. When clicked it comes out and shows shortcuts to some useful features of Windows. There's more advanced and customizable toolbars available now, like this, but it still is beautiful. Keep in mind this was created in 1997, and years are a long time on the internet and when talking about software; kudos to LiON for being the first to develop a cool thing like this (Windows 9x only)!

Clicking the systray icon or the RAM icon will bring up some system info on used memory and disk space.