Hello, Just after a fresh installation of windows binaries of 2.7.0rc1 running on windows XP as a windows service Without ANY modifications i got the strange behaviour described below. I first tried to read Zcatalog's help. All links are of the form below http://localhost:8080/Control_Panel/Products/ZCatalog/Help/THE_DOCUMENT/mana... so wheni click on a link Zcatalog Product's properties are displayed. Here is a list of available documents in http://localhost:8080/Control_Panel/Products/ZCatalog/Help/. Vocabulary.py (Vocabulary) Vocabulary.stx (Vocabulary ) Vocabulary_Query.stx (Vocabulary - Query) Vocabulary_Vocabulary.stx (Vocabulary - Vocabulary) ZCatalog.py (ZCatalog) ZCatalog.stx (ZCatalog) ZCatalog_Add.stx (ZCatalog - Add) ZCatalog_Advanced.stx (ZCatalog - Advanced) ZCatalog_Cataloged-Objects.stx (ZCatalog - Cataloged Objects) ZCatalog_Find-Items-to-ZCatalog.stx (ZCatalog - Find Items to ZCatalog) ZCatalog_Indexes.stx (ZCatalog - Indexes) ZCatalog_MetaData-Table.stx (ZCatalog - MetaData Table) ZCatalog_Parameters.stx (ZCatalog - searchResults) ZCatalog_Status.stx (ZCatalog - Status) When using Zope help System, it seems that many links points to .py files (ie AccessControl.py instead of AccessControl.stx) so the login box is displayed and i received an error "you are not allowed to acces this resource in this context". that's normal i guess because a python script is called. But i can reach some of them Here are the the links with problems In http://localhost:8080/Control_Panel/Products/PythonScripts/Help =================================================================== wrong ones ======== PythonScript.py Script.py standard.py in http://localhost:8080/Control_Panel/Products/OFSP/Help/ correct ones ============ math.py random.py string.py Note that there is always a py extension. The problem is only in API reference item of PtyhonScripts and ZopeHelp André