Thank you Michael,
that did help and made it clear.

Is there a way now to make MoI not chache the files on startup. Currently I have to restart MoI on every change in a file.
I know there was a section in the moi.ini but i was not able to find it in V5

Also I have now moved everything in to my own folder in C:\Users\<user>\AppData\Roaming\Moi\plugins\<myplugin> where should i put my EnglishStrings.txt file so MoI can find it?