Uploaded a modified version of ZipMaster that will work on a thread http://www.users.bigpond.com/russellpeters/Files/ZipMstr1713.zip (48k) Also UnzDll for use on a thread (only needed if used on multiple threads simultaneously) http://www.users.bigpond.com/russellpeters/Files/UnzDll17011.zip (63k) the matching ZipDll http://www.users.bigpond.com/russellpeters/Files/ZipDll17011.zip (73k) It has been an interesting experiment (even if rarely needed) Russell Peters http://www.users.bigpond.com/russellpeters/delphizip.html