nsUnzip plugin

nsUnzip plugin will test or extract files from a ZIP archive.
Code of the DLL uses sources of UnZip 5.52 of 28 February 2005, by Info-ZIP.

Features:
- Flexible extract options.
- Regular expressions (wildcards) may be used to match multiple members.
- Possibility to exclude specified files from processing.
- User function for unpacking progress.
- User function for listing archive.
- User function for crypted archive.


"nsUnzip" plugin v1.0

Download from Wiki

What is the license? Is Info-ZIP GPL'ed or zlib?

BSD-like license:

cool - thanks for developing 🙂

What would you say are the key benefits of nsUnzip over, say, ZipDLL and Nsisunz?

Added: "/e" option for extract only those files that already exist on disk.


"nsUnzip" plugin v1.1

Download from Wiki

How to make NsUnzip work with injstfiles

I want to make NsUnzip able to show progress bar on the .
I tried to modify current MUI2 pages and add this feature to InstallFiles.nsh
However there is some dependencies that nsis has that I can't understand.

Is there any way to do it with instfiles page or I have to make a new dialog?
What is section and how it is invoked by instfiles?

And the most important question, how it shows progress.

Make a modified version of Contrib\UIs\modern.exe using Resource Hacker (apply with !define MUI_UI) or add the progress bar at run time by calling user32::CreateWindow using the System plug-in (1st method is easier). You want to use the "User function for unpacking progress".

Stu

Thanks for advice Afrow UK.
I tested your way adding new control into modern.exe . It works fine.
But for now I want to make it with minimal changes, so I added progress bar function in the first row of the section and it works.

Hi!

I'm just starting with NSIS and I'm a bit lost with the NsUnzip plugin. From here: http://nsis.sourceforge.net/How_can_I_install_a_plugin I see that I need to put the dll into the plugins folder and an nsh file into the include folder. But there is no nsh file.

What am I missing?

Originally Posted by Skeeve View Post

What am I missing?

Having a .nsh is not a plugin requirement, some of them will just have a .dll...

Error #19

I'm using nsUnzip:Extract in my installer and it works great most of the time.
I do a Pop $0 to get the exit code and display it if it is not 0.

In one case I got a return value of 19. (It happened only for one test machine, only for one of the ZIPs my installer unzipped on this machine and I cannot reproduce it, but I saw the window with the 19 in it).

None of the error codes listed in the source (it is saied to be based on http://info-zip.org/UnZip.html) or elsewhere I looked talks about that code.

How is that possible ? What does the return code of 19 mean ?

Thanks,

Ted

ted.reinhard
You should debug extract_or_test_files function of "Source\extract.c".