Struggling with the absence of a decent Notepad++ plugin for the same functionallity as the Eclipse’s “Open Resource”, or Sublime’s “Goto anything…”, or any other IDE’s “Quick open file” or something, I decided to install thy old Delphi 7 in 2016 :) and write one for myself. It turned out I haven’t forgot everything from my Delphi past experience, so I thought I may share with you the results. Here it is:

https://github.com/meboev/NppOpenFileInFolders/

or download directly the compiled dll form here: https://github.com/meboev/NppOpenFileInFolders/raw/master/openfileinfolders.dll

Cheers!
Milen Boev