Sometimes, when you format or reinstall the operating system in your PC, you need to install a load of programs and applications you normally use, and that take hours and hours to find the keys for, etc.
With MultiSet this is no more. It is an application to install programs automatically. You just need to install each program once. MultiSet records all your steps and will repeat them the next time you need them. This way, when you reinstall your operating system, you just have to install MultiSet, press a button (F5 by default) and wait and relax while it installs all the things you had before. You won't waste any more time or get headaches looking for and installing all those applications.