OK, finally figured the EditIni problem out...
It seems there should be an ending semicolon at the end of each line and it should be with {app}, like this:
Code:
EditIni1={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:english;Lang:EnglishUS;
EditIni2={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:german;Lang:German;
EditIni3={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:french;Lang:French;
EditIni4={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:italian;Lang:Italian;
EditIni5={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:spanish;Lang:SpanishES;
EditIni6={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:japanese;Lang:Japanese;
EditIni7={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:korean;Lang:Korean;
EditIni8={app}\Binaries\Win32\steam_api.ini;Section:Settings;Key:Language;Value:russian;Lang:Russian;
That finally worked, at least for the German language, will now test other languages. (Update: Worked for all languages)
It just doesn't work without that last semicolon, my guess is it needs it to "close" the Lang parameter in the line, but I'm no programmer.