X-Mouse Button Control is a free tool for Windows that allows you to re-configure and expand the capabilities of your mouse.
KatMouse
Free
KatMouse changes the behavior of the mouse in Windows to greatly expand the usefulness of the scrollwheel.
WizMouse
Free
WizMouse is a handy little application that enables scrolling of non-focused application windows with your mouse wheel.
Compare AlwaysMouseWheel with alternatives
Compare X-Mouse Button Control and AlwaysMouseWheel and decide which is most suitable for you.
Compare WizMouse and AlwaysMouseWheel and decide which is most suitable for you.
Compare KatMouse and AlwaysMouseWheel and decide which is most suitable for you.