Before clicking above --- create a folder on your desktop and call it graphing Calculator. Click on the link above. When asked choose run. Then choose run again. Then the WinZip Self-Extractor appears click on Browse...Choose the Graphing Calculator folder you created in Step 1. Now choose Unzip. You should now be able to close everything and open the folder you created. Inside that folder is a file called Vticalc. THIS IS THE GRAPHING CALCULATOR!