When using the Windows shortcut key to switch windows (i.e., Alt-Tab or Winkey-Tab), Rapid PHP is not always represented by the currently active Window. For example, after having done a search in Rapid and having closed the search dialog, the search dialog is displayed by Windows thusly:
Rapid PHP 2016 Version 14.3.0.187
Windows 10 Pro Version 1703 Build 15063.413