So if you have ever had to switch between Inventor and AutoCAD, you know that zooming is the exact opposite with the scroll wheel.
In Inventor scrolling AWAY from you zooms OUT while towards you zooms IN.
Of course this is completely logical, yet AutoCAD is the exact opposite.
However, there is a new system variable named ZOOMWHEEL.
Set to Zero (0) AutoCAD behaves as normal.
Set to One (1) and it behaves like Inventor.
Try it. You make like it!