There are plenty of application already in place which are used to play significant task which are very unusual in apart from a common computer or loaded with the default operating system settings. Some of which are really very usefull while some of them are used only for fun or to give a unique look.
Leftsider is also such a tool which makes your application or window default Minimize, Maximize or close buttons position shifted to left side. This can be very funny sometime making your friends surprised.
For this you only have to download the application from the link provided. This application is very small in size and does not require any special skill. If the buttons don’t come on the left then just refresh the system or reopen the window and if you just want to exit from the tool then end the process from the task manager.