Hi all, As always I have too much projects going on, but I think it is worth it to invest some time here. Compression has a wide use, and I would be glad when I have something to rely on. I agree with James that - compression/decompressison algorithms and - file operations on compressed blocks, headers, directory etc are essentially two different things that could be split very well. I think most of us would glad to have at least the second totally in Pascal. The (de)compression algrorithms would need to be written once and, provided they are error-free, never need any attention. It would be ideal if the DLL's would stick to the (de)compression and Delphizip or an equivalent do the latter. Unfortunately, as far as I can see it, I must agree with James that too much work is done by the DLL's. Of course it is convienient that you just can say 'add this file to the zip'. but if you want something more, it is annoying that you can't get to it. The DLL's are a blackbox to me, there is very much hidden which I cannot access. I have no C compiler and have not used C in many years. It would be great if the two were seperated, but have a clean, simple interface to each other. It would be easy to extend or replace either of them as the need comes. Please understand me correct, I very much appreciate the efforts of the writers and maintainers that have put many hours in the Delphizip project free of charge. I have been using the DLL's with pleasure for many years, directly by my own code and indirectly by the use of freeware zip programs. But there is more to explore, zipping has more use than adding and extracting files from an archive. Nanozip is an interesting project. It would be great to cooperate. I saw that there are some familiar people there which I know from the mailing lists from Mike Lischke's Virtual Treeview and Jim Kueneman's Virtual Shell Tools. Since Adem has dedicated his nanozip to Chris (Vleghert), I'm sure he's willing to have some kind of cooperation. I'm afraid that nanozip cannot completely replace the 'lower levels' of the dll's as it only supports Stored and Deflated compression. But it is a start and for some of us it may be enough. I like Adem's 'content' approach. I was already considering approaching Adem and the others on the nanozip list, but I will wait for some more reactions from this (Delphizip) list. Regards, Gerard.