Switch_Ctrl_with_Caps.ps1

<#
	Author: Dominent
  Usage: Switches CAPS_LOCK with LEFT_CTRL
	Date: 02/20/2017
  Remarks: Tested on Windows 10 Build 14986
	
  https://msdn.microsoft.com/windows/hardware/drivers/hid/keyboard-and-mouse-class-drivers
  https://rayli.net/blog/life/remap-keys-map-caps-lock-to-control-button/
	http://smallvoid.com/article/winnt-scancode-map.html
#>

[string]$REGISTRY_PATH = 'HKLM:\SYSTEM\CurrentControlSet\Control\Keyboard Layout';
[string]$PROPERTY_NAME = 'Scancode Map';

<#
#CAPS_LOCK -> LEFT_CTRL
$byteMap = [Byte[]] (
	0x00, 0x00, 0x00, 0x00,  #Header: Version. Set to all zeroes.
	0x00, 0x00, 0x00, 0x00,  #Header: Flags. Set to all zeroes.
	0x02, 0x00, 0x00, 0x00,  #Two entries in the map (including null entry).
	0x1D, 0x00, 0x3A, 0x00,  #LEFT_CTRL -> CAPS_LOCK
	0x00, 0x00, 0x00, 0x00); #Null terminator
#>
	
#CAPS_LOCK -> LEFT_CTRL, LEFT_CTRL -> CAPS_LOCK
$byteMap = [Byte[]] (
	0x00, 0x00, 0x00, 0x00,	 #Header: Version. Set to all zeroes.
	0x00, 0x00, 0x00, 0x00,  #Header: Flags. Set to all zeroes.
	0x03, 0x00, 0x00, 0x00,  #Three entries in the map (including null entry).
	0x1D, 0x00, 0x3A, 0x00,  #LEFT_CTRL -> CAPS_LOCK
	0x3A, 0x00, 0x1D, 0x00,  #CAPS_LOCK -> LEFT_CTRL
	0x00, 0x00, 0x00, 0x00); #Null terminator
		
New-ItemProperty `
-Path $REGISTRY_PATH `
-Name $PROPERTY_NAME `
-PropertyType Binary `
-Value $byteMap;