I am unsure as to where I should post this, but I am starting here. I have tried to add the "pixel counter 2" plug in with no results. I have followed the step by step instructions and still no luck. However, the instructions and what my computer did were a bit different. I have tried absolutely everything I know to do. I got paint.net with no problems at all and am loving it, but need the pixel counter 2 for making book folding patterns. I have an HP computer with Windows 8.1 with 64 bit operating system. If I have posted this to the wrong place, I apologize. Steer me in the right direction, and I will gladly go there. Thank you in advance for any assistance you are able to give me.