FlipFlopWheel.ps1

#
# Check to see if we are currently running as an administrator runAs if needed
#
if (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator"))
{  
  $arguments = "& '" +$myinvocation.mycommand.definition + "'"
  Start-Process powershell -Verb runAs -ArgumentList $arguments
  Break
}
#
# Change registry settings for all mice present
#
# Reverse mouse wheel scroll FlipFlopWheel = 1 
# Normal mouse wheel scroll FlipFlopWheel = 0 
#
$mode = "1"
Get-PnpDevice -Class Mouse -PresentOnly -Status OK | ForEach-Object { 
  "$($_.Name): $($_.DeviceID)"; Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Enum\$($_.DeviceID)\Device Parameters" -Name FlipFlopWheel -Value $mode -Type DWord; "+--- Value of FlipFlopWheel is set to " + (Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Enum\$($_.DeviceID)\Device Parameters").FlipFlopWheel + "`n"
}
#
# Pause before exiting script
#
Write-Host -NoNewLine 'Press any key to continue...';
$null = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown');