Compress zip files with windows shell api and c#

The following examples show some of the operations you can perform with compressed files. These examples require the following NuGet packages to be added to your project:. The following example shows how to create and extract a compressed.

The example compresses the contents of a folder into a new. To run the sample, create a start folder in your program folder and populate it with files to zip. The next example iterates through the contents of an existing. It uses the ZipArchive class to access the zip, and the ZipArchiveEntry class to inspect the individual entries.

ZipFileExtensions class. Asked 11 years, 10 months ago. Active 1 year, 10 months ago. Viewed k times. What would you suggest baring in mind I'm under strict rules and cannot use other libraries Thank you. Improve this question. When using. NET's ZipArchive. CreateEntryFromFile , be careful with your parameters and make sure you're not using the absolute path for the entryName parameter. You'll get no warning, the zip file will be made, and it will be empty. You can use Path.

GetFileName filePath if you're dealing with strings instead of. NET's filesytem objects, which would allow use of obj.

Add a comment. Active Oldest Votes. Just an update on this for anyone else who stumbles across this question. Then you can write: System.

Improve this answer. Danny Danny 2, 2 2 gold badges 15 15 silver badges 21 21 bronze badges. There is no support for password protection either. Compression as a reference. CreateEntry fileName, CompressionLevel. Open zipStream. Write pdfBytes, 0, pdfBytes. Walter Stabosz 7, 4 4 gold badges 40 40 silver badges 74 74 bronze badges. If you're using VB.

NET, fastest way to get file bytes: My. ReadAllBytes f — Janeks Bergs. Open zFile, ZipArchiveMode. Niklas 15 15 silver badges 28 28 bronze badges. Guy L Guy L 2, 1 1 gold badge 25 25 silver badges 35 35 bronze badges. RodrigoStrauss it's dest, source — Guy L. ZipFile and ZipArchive come from the assembly System.

FileSystem and System. Compression — LotuX. This library is only available from. NET framework 4. This is the most concise answer for me. I have copied the article text below as written original license: public domain Compress Zip files with Windows Shell API and C Introduction This is a follow up article to the one that I wrote about decompressing Zip files.

Background Ever needed to compress Zip files and needed a better Zip than what comes with many of the free compression libraries out there? Forgot your password? Search within: Articles Quick Answers Messages. Alternative Article.

View Original. Tagged as. Stats Kumar Kisalaya Rate me:. Please Sign up or sign in to vote. Download sample - Using the Code As the class uses the Shell32 namespace, a reference to Microsoft Shell Controls and Automation should be added to the project. Copy Code. Kumar Kisalaya Software Developer Senior. First Prev Next My vote of 5 srilekhamenon 8-Nov Alexander Tobias Heinrich Jul Debopam Pal Nov Kumar Kisalaya Sep Thanks in advance. Gerald Gibson Jr.

This uses the zipping tool built into Windows. Windows does not support password protecting zip files. Pablo Aliskevicius. Don't operate recursively into subdirectories. Only copy the specified files. Increment the reference count so the worker thread has time to complete. Pablo, Thank you! I found it pretty easy to write the companion, TestUnzip. My vote of 5 Pablo Aliskevicius Nov Thanks for sharing! Using the internal library of Microsoft for zipping requires a license from Inner Media, Inc.

Who says so? The fact that the internal library used in the Microsoft API is copyrighted does not imply that we cannot use it freely. Error during Compression houseboat 4-Feb Actually my requirement is different. For me the source and the destination are same.

The zip file will be created in the same folder from where all the files and folder being copied into the empty zip file. For that error is coming as a message box showing "Cannot copy compressed zipped folder onto itself" But when I select the different destination path then it will create the correct zip. Please provide the modified code with solution. Its quite urgent. That's not a nice way to ask. By now, I guess someone already told you how to do it.

In case your colleagues didn't, here's how it goes. Zip your folder into a temporary file, in a temporary folder. Move your temporary file to the desired source folder. That's all. Select Certain Files speeddemon Jul I need to be able to only compress files that were modified after a certain date. Is there a way to do this. Yes but because this just uses Windows built in system you wont get that feature automatically. Instead you need to loop through the files using the.

Net System. Compressing DirectoryInfo[] sagedread Jul