You can edit in Word if you like. It doesn't necessarily have more features than paint. All you need to do is take the screen shot. Open Word. Ctrl-V to paste the screen shot. Then click on the screen shot to select it. At the of the word window, on the far right of your ribbon, a section called "Picture Tools" will appear. Right under picture tools will be the "Format" menu. Click it and you will have all the tools needed to edit the picture.

What exactly are you trying to do other than paste/crop/resize your screen shot?