Hi! I've been wondering why this doesn't work: from OFS.Folder import Folder ... class FMFolder(Folder): meta_type='FMFolder' def __init__(self, id, title): self.id=id self.title=title _properties=Folder._properties+( {'id':'linkname', 'type': 'string'}, {'id':'beschreibung', 'type': 'text'}, {'id':'langtext', 'type': 'text'}, ) def testing(self): "ABC" return str(self.objectValues) Now, fascinatingly: I get: objectValues()==(), even if the Management interface do display files in the folder. nor is /some_fmfolder/testing found. Andreas -- Andreas Kostyrka | andreas@mtg.co.at phone: +43/1/7070750 | phone: +43/676/4091256 MTG Handelsges.m.b.H. | fax: +43/1/7065299 Raiffeisenstr. 16/9 | 2320 Zwoelfaxing AUSTRIA