Not only do we have to address the EOLAS patent issue, but the way calling new popup windows from IE leaves the status bar open. IE did this to address security issues to help the user to see what is being uploaded.
Also the windows are guaranteed to open within the desktop. So your window boundaries would not appear outside the desktop space. Therefore IE would “resize” itself.
I work with many projects that either use full screen applications or popup windows and it is difficult to work with.