Notepad++ loads plugins only from 2 locations:
1. %PROGRAMDATA%\Notepad++\plugins\ - while Notepad++ installed on: %PROGRAMFILES%\Notepad++\ or wherever without doLocalConf.xml
2. <NPP_INST_DIR>\plugins\ - while Notepad++ installed on wherever (except in %PROGRAMFILES%\Notepad++\) with doLocalConf.xml
generic_string_appdataNppDir;// sentinel of the absence of "doLocalConf.xml" : (_appdataNppDir == TEXT(""))?"doLocalConf.xml present":"doLocalConf.xml absent"