Open Registry Key Comments

 The way this works is by setting the "previously viewed" key to the target, then finding and opening regedit in your "windir". Unless your alternate editor also reads the "LastKey" value from "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Applets\Regedit", a direct drop-in path replacement won't work. My suggestion is to learn enough JS to modify the source code yourself. Just about everything you have to worry about is in the first few functions of overlay.js.