One of the most visible differences between the Macintosh Mac OS and Windows interfaces is that the windows have the buttons (close, minimize, maximize) on the left on a Mac, and on the right in Windows. To avoid this difference comes Leftsider, a small utility that lets you change the location of these buttons.
The best thing about Leftsider is that it is available at any time (from the system tray) and doesn´t consume system resources. When you need it, you can activate or deactivate it, changing the buttons as you wish.
Of course, this utility is especially directed at Macintosh users who use Windows sometimes, and so simulates both systems.
All this makes Leftsider an interesting utility for the Windows operating system.