Well my problem is that I don't know what to find bcs the value doesn't exists yet and has to been included to the section so that it looks something like this:
entry = whatever.dll
entry = another.dll
entry = andsoon.dll
entry = myadded.dll
On unInstall I could use a WordReplace function but I have currently no idea how to
.) check if this entry was already written to the ini
.) add the entry without destroying another value
Thank you very much for your help so far, Red Wine!
Edit: The programm itself (for which the INI settings for) has no problems parsing the INI file and using the values. The only problem is myself adding more ununique values.