lightscreen portable is very nice little portable program to capture screenshot of your computer screen. you can also press PRT SCR button on your keyboard to take screenshot and it will be automatically saved in directory you choose. Lightscreen also allows you to take screenshot of particular area of your monitor screen.
Lightscreen Portable 1.01 Screenshots:
As you can see on above screenshot…..Just click on Area and select area you want to capture and it will be automatically saved.