[Boost-users] boost::iostreams' zlib and writing multiple files

Hello, how can I write/create an archive (gzlip or zlib) that contains multiple files. At the moment I can create only an archive which contains a file (named like the archive but ommitted the file-type) that contains my output. But what I need is to create an archive which contains multiple files. Is this even possible with the boost::iostreams framework? thanks Sascha