If a widely-used platform by a major vendor such as Microsoft produces ZIP archives with major interoperability issues, I would expect others to have run into this before. More details about this are available here , here and here. The tests presented here demonstrate how large ZIP files exported from the Microsoft OneDrive web client cannot be read by widely-used tools such as unzip and 7-zip. In the OneDrive files, this value is set to 0 zero , whereas most reader tools expect a value of 1.
However, to ensure that existing files that are affected by this issue remain accessible in the long term, we need a more structural and sustainable solution. It is probably fairly trivial to modify existing ZIP reader tools and libraries such as unzip and 7-zip to deal with these files.
If any readers have contacts there, please bring this post to their attention! For unzip I found this ticket on the Info-Zip issue tracker, which looks identical to the problem discussed in this post. The ticket was already created in , but its current status is not entirely clear. For 7-zip , things are slightly complicated by the fact that for Unix a separate p7zip port exists, which currently is 3 major releases behind the main 7-zip project.
The script is available here:. For unzip you can check this this by running it with the --version switch. Note that this is the big-endian representation of the signature, whereas the ZIP formation specification uses little-endian representations. Confirm and wait for the download link via email Notes: This assumes you are the owner of the files.
Don't forget to move your folder back to it's original location afterwards. Improve this answer. I know it's not the question asked, but a tip: If you have tools to extract tar. Get an OAuth token: go to OAuth 2. Ian Hyzy Ian Hyzy 2 2 silver badges 13 13 bronze badges. This tool does not download a large file. Start over again and again. The Overflow Blog. Podcast what if you could invest in your favorite developer? Who owns this outage? A program what I can start from differents computers.
Therefore I do not need the context menu and some other things, that requiered an installation. A standalone compression tool with high compression ratio. I don't want a command-line version of "7-Zip"! I want an official version of this method Is it possible? If I install the program, move it to usb and uninstall the program again , the FM starts, but when doing the options, no plugins appear! Got the same effect V4. I have copied the following files maybe 7z. I had a look at the registry if 7-zip will have the path stored there for the Codecs, Formats, but did not find anything -- nevertheless only the language files will be recognized at the start.
In creating a Portable 7-Zip to use on a USB Drive, I don't think you can get the file associations changed because you have to alter the system file associations. Well, you could, but if you do, what happens when you remove the USB Drive? Or get angry that their associations had been changed. He has had to make a number of changes to get them to work. Igor, can you express your opinion to this suggestion? For example, NTFS volumes use sorting order "by name", so if an archive uses another sorting, then the speed of some operations for files with unusual order can fall on HDD devices HDDs have low speed for "seek" operations.
If you think that unusual file order is not problem for you, and if better compression ratio with small dictionary is more important for you, use ' qs ' mode.
Other ZIP programs can open some archives with incorrect headers, since these programs just ignore errors. If you have such archive, please don't call the 7-Zip developers about it. Instead try to find the program that was used to create the archive and inform the developers of that program that their software is not ZIP-compatible. But latest versions of 7-Zip supports RAR5 archives. Only Windows Explorer knows exact drop target. And Windows Explorer needs files drag source as decompressed files on disk.
So 7-Zip extracts files from archive to temp folder and then 7-Zip notifies Windows Explorer about paths of these temp files. Then Windows Explorer copies these files to drop target folder. To avoid temp file usage, you can use Extract command of 7-Zip or drag-and-drop from 7-Zip to 7-Zip.
You can change current folder to folder that is common for all files that you want to compress and then you can use relative paths:. Also that block of 2 GB can be fragmented for example, by some DLL file , so 7-Zip can't allocate one big contiguous block of virtual space. There are no such limitations in bit Windows. So you can use any dictionary in Windows x64, if you have required amount of physical RAM.
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