Thanks for the effort but you shouldn't make an heavy application for a calculator, it's not safe.
![Rolling Eyes :rolleyes:](https://forum.c-rpg.net/Smileys/default/icon_rolleyes.gif)
Or at least make it open source cause a virus scan on a website means nothing.
A web application js/html5 is way more suited for that cause it would be 99.9% secure for us. (it even can be faster to make if you use the right libs => knockoutjs.com - jquery.com - jqueryui.com).