Taking screenshots in Windows isn't as easy as taking screengrabs in Mac OS X, but Microsoft sure is trying to resolve this issue. Their idea -- Snipping Tool. The Snipping Tool is available for both Windows Vista and Windows 7 operating systems.
Snipping Tool captures a screen shot of anything on your desktop, like a picture or a section of webpage.
Snip a whole window, a rectangular section of the screen, or draw a freehand outline with your mouse or tablet pen (or your finger, if you're using a PC with a touchscreen). Then you can annotate, save, or e-mail the image using buttons right in the Snipping Tool window. Snipping Tool is available in the Home Premium, Professional, Ultimate, and Enterprise editions of Windows 7 and Vista.