When I started using Windows 7, I saw the following feature. The state change of the Progress Bar is not jumping, like Windows XP, but smoothly (animation), naturally it takes a while. It certainly looks nice, but in some situations is not necessary. For example, when displays a copying files. I could not disable this animation by using API, and I had to write your own Progress Bar which completely match the current theme. Optionaly, you can specify one of four colors: green (default), red, yell