Access a global JavaScript object from IE COM

Question

Looking at Compatibility Changes in IE11 , we have the .execScript window replaced with eval . Now that I am using an IE COM object, how can we get a JavaScript Global Object that has an eval function?

PowerShell:

$ie = New-Object -COM InternetExplorer.Application $document = $ie.document $window = $document.parentWindow # How to get JavaScript Global Object from these? 

See also this related question .