[Zope] Avoid product load

Hello Is there any way to avoid loading a product *without* having to delete its folder from /Products? Zope Version (Zope 2.6.1 (binary release, python 2.1, win32-x86), python 2.1.3, win32) Python Version 2.1.3 (#35, Apr 8 2002, 17:47:50) [MSC 32 bit (Intel)] Gabriel Genellina Softlab SRL