How can i check whether a Zip file has Password protected or not?

I need to check whether the zip file uploaded in Web application has password protected or not? If password protected, should not allow to upload the zip file?

Id #17677 | Release: None | Updated: Jun 15 at 1:46 PM by gowthamguptha | Created: Jun 15 at 1:44 PM by gowthamguptha

Unzip files "The final hash has not been computed."

Hi, i zipped a folder of 1.5 GB in multiple zip files of 100 MB using aes256 encryption. When i tried to unzip, after 70 - 75% of files were unzipped the error Ionic.Zip.BadStateException was throw...

Id #17672 | Release: None | Updated: Jun 1 at 9:50 PM by cronostime | Created: Jun 1 at 9:50 PM by cronostime

Bad Signature exception thrown for valid zip file.

The following code snippet throws "BadReadException: Bad signature (0x03323108) at position 0x0020969F": using (var zip = new Ionic.Zip.ZipInputStream(fileName)) { var e = zip.GetNextEntry()...

Id #17669 | Release: None | Updated: May 31 at 12:16 PM by saby | Created: May 31 at 12:16 PM by saby

DotNetZip Files on Wrong Drive

Because I have a Small (120GB) SSD as my C: drive, I have changed the Windows TEMP and TMP environment variables to point to D:\Windows\Temp instead of the usual C:\Windows\Temp. However, some appl...

Id #17659 | Release: None | Updated: May 6 at 4:01 AM by TrevsDev | Created: May 6 at 4:01 AM by TrevsDev

File names containing Horizontal Ellipses being removed

Hi, When zipping files containing Horizontal Ellipses (… or &#8230), it is removed and replaced with a full stop. Is there a way to prevent the file from being renamed? Thanks.

Id #17645 | Release: None | Updated: Apr 18 at 8:52 AM by pknaidoo | Created: Apr 14 at 2:31 PM by pknaidoo

ZipOutputStream causes exception in GC thread

Version is 1.9.1.8 When using the constructor ZipOutputStream(String fileName) to create a ZIP file on a removable device (in my case: USB) removing the drive on which the stream is being create...

Id #17641 | Release: None | Updated: Apr 7 at 7:16 AM by alexnoe | Created: Apr 7 at 7:16 AM by alexnoe

WPF - Open a file from a protected zip file thought a hyperlink (DotNetZip

Hey guys, So i need some help with my wpf application. i have a datagrid(see below) and in that datagrid i have some url's. When you click on a url it links to a file that's inside of a protected...

Id #17640 | Release: None | Updated: Mar 31 at 1:35 PM by rickpeters456 | Created: Mar 31 at 1:35 PM by rickpeters456

Save directly to zipfile from richtextbox?

Hi all, I'm wanting to use DotNetZip in order to give the users of my MDI WinForms application the added security of password protected files. My application uses RichTextBox controls on the ch...

Id #17599 | Release: None | Updated: Jan 21 at 10:33 AM by JasonBodine | Created: Jan 21 at 10:33 AM by JasonBodine

Extracting a 7z file with DOtNETZip

Can I extract a 7z file with DotNetZip and what do I need to do. I get an error "zipentry::readheader() bad signature" Does this mean I can "If I create a zipfile with a java/PHP/Python/C/Perl a...

Id #17594 | Release: None | Updated: Jan 13 at 4:11 AM by Cindol74 | Created: Jan 13 at 4:11 AM by Cindol74

PackedToDateTime overadjusts out-of-range months

In Zip/Shared.cs, The PackedToDateTime function, it catches an ArgumentOutOfRangeException, and then tries to adjust to a valid date: else { try { ...

Id #17586 | Release: None | Updated: Dec 24, 2015 at 12:43 AM by mj1856 | Created: Dec 24, 2015 at 12:43 AM by mj1856