[Zope] zsync for zope 3.4 on windows

Hi all, I read somewhere there is a tool called zsync for zope 3. I have installed zope 3.4 for python 2.5. My python 2.5 is in the folder c:\python2.5 and zope 3.4 was also installed in this folder (i believed because it automatically found the python2.5 installation directory and installed with asking). I do a search for zsync but can't find, please help me. Thanks, Rgds Vu