Query IE11 Extensions with PowerShell

function Make-Extension
{
    Param([string]$clsid, [string]$name, [string]$dll)
    
    $extension = New-Object PSObject -Prop (@{'CLSID' = $clsid;
                    'Name' = $name;
                    'DLL' = $dll })

    $extension
}

$registry_keys = @( 'HKCU:\Software\Microsoft\Internet Explorer\Extensions',
                    'HKLM:\Software\Microsoft\Internet Explorer\Extensions',
                    'HKCU:\Software\Wow6432Node\Microsoft\Internet Explorer\Extensions',
                    'HKLM:\Software\Wow6432Node\Microsoft\Internet Explorer\Extensions' )
                    
ForEach ($key in $registry_keys) {
    If (Test-Path $key ) {
        $ids = Get-ChildItem $key -Name 
        ForEach ( $id in $ids ) 
        {
            $clsid = (Get-ItemProperty -Path $key\$id -Name ClsidExtension).'ClsidExtension'
            $name, $dll = Lookup-Clsid $clsid
            $extension = Make-Extension $clsid $name $dll
            $extensions += $extension
        }
    }
}