I have the code to zip a file, I have the code to mail a file, infact it works great...but I would like to know how do I zip a file(s) with out doing this: ZipOutputStream outStream = new ZipOutputStream (new FileOutputStream("out.zip")); I have the code to attache the email, infact it sends the email when I create the file by: ByteArrayOutputStream bout=new ByteArrayOutputStream(); ZipOutputStream zout=new ZipOutputStream(bout); but the archive is invalid in the end I cannot extract it when I mail it out or try ans write it to disk... any help would be greatly apprieciated... Rob    More>>