Some programs (e.g. ms html help viewer) have zoom-in features that only seem to work when you mouse wheel scroll.

Is there a way to emulate mouse wheel scroll using the keyboard?

4 Answers 4


It's possible with AutoHotkey.

Try this script for instance: Using Keyboard Numpad as a Mouse. It uses the Numeric Pad to emulate a mouse. When on, NumPad+ and Numpad- emulates the mouse wheel.


SerioSoft MKey does the job quite well.

This is much easier than making AutoHotKey scripts. TIP: If scroll doesn't work after making "scroll hotkey" try to change default scroll speed setting from "1" to "2".

You can also take a look at: AtnSoft Key Manager


This is not a generic answer to your question, but notice that some softwares such as Visual Studio Code allow the documents to be scrolled using a key combination as well, so you might want to check out the configuration of the software you're using the most for such shortcut key settings. In my case, it's Ctrl + Up/Down in VSCode by default to scroll down as much as one line, and Alt + PageDown/PageUp to scroll down the whole page a few more lines(more than one line) down and up. I've personally remapped the latter to Alt + z/x since it's easier for my hand.


(Assuming Windows): Check out AutoHotKey, it can remap the Mouse Wheel.

From the docs:

Mouse Wheel Hotkeys [Windows NT/2000/XP or later]

Hotkeys that fire upon turning the mouse wheel are supported via the key names WheelDown and WheelUp. WheelLeft and WheelRight are also supported in v1.0.48+, but have no effect on operating systems older than Windows Vista.

  • 1
    this is the other way around: capturing when the real wheel is used on the mouse.
    – Snark
    Mar 14, 2010 at 21:16
  • Good point, it was mostly just to show AHK is 'mouse wheel aware'. :) Mar 14, 2010 at 21:22

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