Hi gang, This version just fixes a bug with the folder contents tab on Windows. For some reason, on Windows 95 (and perhaps other platforms) the Python interpreter behaves differently enough that if you use a class attribute from a different module and put it in your own class, you may in fact be modifying its global context. It's probably a bug in Python. As a workaround, this version of BTreeFolders doesn't have the "details" tab anymore. http://www.zope.org/Members/hathawsh/BTreeFolder/BTreeFolder-0.1.1.tar.gz BTW has anyone done any semi-formal speed tests? It's rumored that a custom getattr in Python can cause a bit of a slowdown. We could write a custom getattr in C to solve the problem. But we don't want to do any premature optimization. Shane