You can’t scroll the inactive window under the mouse in default situations, to scroll it you must make the windows active through mouse clicking. However, you can enhance the functionality of this feature easily with third-party tools.
WizMouse is a free and handy utility that offers you the ability to scroll the window immediately after the mouse moves inside it.
- Allow to make the scrolling window active automatically.
- Add mouse wheel support to these programs that does not support mouse wheel.
- Enable or disable it with a single click.
- Native 64-bit support for Windows 7, Windows Vista, etc.
WizMouse supports most common Windows platforms.
KatMouse is an alternative to WizMouse.
- Scroll a page or a certain number of lines at a time.
- Allow to customize scroll settings for specified applications.
KatMouse works on Windows 7, Windows XP, etc.