Then it's a damn coincidence that you're using exactly the same names for variables, methods and classes in your tool as Sojaner on CodeProject did? Oh wait, it's nearly the same GUI only with new colors (new theme) and your name in the title. It MUST be a coincidence.
At least you should give credits as you used his source without doing much yourself (except some design changes and putting your name in the title), hm?
With best regards