Hello Sylvie, I never used odt-export before and I can reproduce your problem. I'm using MS Windows and Emacs 24.1.50 with orgmode 7.8.10.
It looks like, that org-export expects a Windows command line tool called 'zip'. I downloaded the Gzip binary from http://gnuwin32.sourceforge.net/packages/gzip.htm. I opened the zip-file with a graphical unzip-program (like Winzip or 7zip or Totalcommander or so).
Then I put only gzip.exe into Windows/system32 directory and renamed it to zip.exe
After that M-x org-export-as-odt does not display the zip-Error any more, but stops with 'Unable to create odt file (1)' in my case.
So I do not know whether this zip-workaround does not work or if there are additional requirements to satisfy.
Regards, O. Am 24.06.2012 20:53, schrieb Bastien:
Sylvie is using Windows and she tries to export to ODT (for further conversion to PDF). Apparently, the executable "Zip operator" is needed.
