I'm convinced that TripleX read the manual

You, however, should read the latest manual version:
http://www.conitec.net/beta/apath.htmQuote:
If the path begins with "%EXE_DIR%", it's a subfolder of the program folder (like "%EXE_DIR%\\template_6\\models"). Apart from that, do not use special characters or spaces in your folder names.