Quicktext is a Notepad++ plugin for text substitution with multi field inputs. It's similar to Tab Triggers in TextMate, Resharper/CodeRush in Visual Studio. PLEASE UPDATE Notepad++ v5.4.4 if QuickText isn't functional.
With the QuickText plugin enabled, my Unicode copy of NPP 5.9.5 will crash in this situation: Create a blank text file with one line of 260 characters. Position cursor at the beginning of the line. Press the tab key. Notepad++ will crash.
This plugin was an essential part of my Notepad++ IDE, I used it all the time. The latest version, however, is severely broken, so I switched to WebEdit, which now offers similar functionality. http://sourceforge.net/projects/notepad-plus/forums/forum/482781/topic/1959856/index/page/4