Convert Numbers v1.5(Binary, Octal, Decimal, Hex and other...) supports very long numbers

This program converts numbers in a number system to numbers in another number system like Hex to Decimal or binary to Hex etc., see the word document to know how to convert. There is a useful graphical function,this function flashes a window or an object using its back color v1.5 - over flow error has fixed, write numbers as long as you can! how it's fixed... see the word document atached with this submission