PrtScr is a free screen capture program. Here are some of its features:
- Captures full screen, rectangle selection, freehand selection, or active window
- Can capture mouse cursor
- Allows annotation over capture, with smooth, natural mouse drawing
- Saves capture straight to desktop or to any file, sends it as email, edits, prints or sends to clipboard
- Exports as JPG, BMP, or PNG (transparent or opaque)
This video provides more information:
The real cool feature of PrtScr is its ease of use and visual effects.
Source : PrtScr