I have uploaded a rough example of storing multiple versions of files in a zip file. http://www.users.bigpond.com/russellpeters/Files/VerSave.zip (336k) - includes latest ZipMaster.pas for threads wanted to see if it could easily be done (and it helped put off what I should have been doing!). Russell Peters http://www.users.bigpond.com/russellpeters/delphizip.html