HexDecBin - converting a lot from base-16 to base 10

At work, I found myself converting a lot from base-16 to base 10 (as in several times in hour, in some cases) and using the Windows calculator app was just too cumbersome after a while. So I whipped up this Little tool to do it quickly and efficiently. I don`t imagine updating it ever again since it does what I need it to do but I`m putting it out there for people since I couldn`t find a program for Windows that would just convert number bases.