KatMouse is a little but useful windows utility that lets you scroll windows without having to focus on them. By Default, in windows you cannot scroll a window unless it is under focus. Both keyboard and mouse need to be focused on a window if you want to scan it.

But with KatMouse, you can scroll windows without requiring them to be in focus. This feature is quite useful when you are chatting on IM typing your messages and side by side you are reading a document or browsing the web.

Scrolling unfocused windows is available in Ubuntu by default and it was one of the feature i really missed in Windows. Thanks to KatMouse that provided this feature for Windows.