Login  
Search All Forums
Dart Home | PowerTCP Zip Compression for .NET | Custom Development Reply | PowerTCP Zip Compression for .NET Topics | Forums   
AuthorForum: PowerTCP Zip Compression for .NET
Topic: Exception: The compression method is not supported.
mma

From: Carrollton, TX USA
Posts: 2
Member Since: 03/21/11
posted March 21, 2011 12:38 PM

I am getting "The compression method is not supported." exception (type of Dart.PowerTCT.Zip.ZipException) when I either call "QuickUnzip" or myZipArchive.Open" method; the zip file was created by using an early version of PkZip program.

Can anyone know what caused this? Is there anyway I can set the properties other than the defaut ones?

from the support.dart.com, it says:

WinZip, PKZIP, and UNIX gZip compatible

Nick B (Admin)

From: Utica, NY USA
Posts: 567
Member Since: 05/25/10

Extra Support Options
Custom Application Development

posted March 21, 2011 3:55 PM

Hello,

PKZIP compatibility is only intended to indicate its modern implementation; what version of PKZIP does your zip originate from?

------
-Non-current subscribers must contact sales@dart.com to update subscription and receive continued support as needed.
------

mma

From: Carrollton, TX USA
Posts: 2
Member Since: 03/21/11
posted March 21, 2011 4:02 PM

Thanks for the quick reply.

it's so old that the windows property dialog couldn't show it. But the timestamp string says it's from the 1990s.

In your reply, you said "PKZIP compatibility is only intended to indicate its modern implementation", what version of PKzip program has this implementation?

Thank you very much.
Nick B (Admin)

From: Utica, NY USA
Posts: 567
Member Since: 05/25/10

Extra Support Options
Custom Application Development

posted March 21, 2011 4:29 PM

Hello,

We support the modern implementation of PKZIP as is defined on their website here:
http://www.pkware.com/documents/casestudies/APPNOTE.TXT

I'm afraid I do not know what version of PKZIP that compatibility with our component starts at, though.

------
-Non-current subscribers must contact sales@dart.com to update subscription and receive continued support as needed.
------

Reply | PowerTCP Zip Compression for .NET Topics | Forums   
This site is powered by PowerTCP WebServer Tool PowerTCP WebServer for ActiveX