http://onion.net/2010/compression/zip
finish () : string
The method »finish()« is necessary for closing the .zip binary stream correctly before the binary .zip file is finally produced.
The method roughly corresponds to a »b.write()« in the case of any binary files or an »is:writeWorkspace()« in the Imageservice area.
Example
A complete example for creating and completing a .zip binary stream can be viewed here.