This class can be used to create archives of compressed files in ZIP format. A simple Zip file handler for creating zip files, either for download, or storage on the server. Allows the user to create zip files with both archive and file comments. Can deliver the archive as file handle or String. Will automatically shift to a temp file if the zip file gets above a certain size, to help curb out of memory issues. Can write zip data directly to an external file, given only the name. The code is initially based on the work of Rochak Chauhan from his CreateZipFile, but key changes and new code means that this is a new class in it's own right.