How to unzip file in vb?

[Esmond]

Is there any free resource to do that? Thanks.

 

[Cor Ligthert]

Esmond,

See this message from Dennis

http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vb/msg/477ad5223aab7480?hl=en

I hope this helps,

Cor

 

[Ken Tucker [MVP]]

Hi,

Open Source Zip compression library
http://www.icsharpcode.net/OpenSource/SharpZipLib/Default.aspx

Using the J# zip classes.
http://msdn.microsoft.com/msdnmag/issues/03/06/ZipCompression/default.aspx

Ken

 

[Herfried K. Wagner [MVP]]

Is there any free resource to do that?

CAB files:

Microsoft Cabinet Software Development Kit
<URL:http://support.microsoft.com/?scid=kb;EN-US;310618>

You can build CAB files using the "MAKECAB.EXE" utility that is IIRC
included in Windows. For extracting CAB files, you can use Microsoft's
"EXTRACT.EXE", which is available on the Windows XP CD or as part of the
Windows XP Support Tools:

<URL:http://groups.google.de/[email protected]>

Alternative you can use p/invoke on 'SetupIterateCabinet'. A VB6 sample can
be found here:

View and Extract CAB File Contents Programmatically
URL:http://www.thescarms.com/vbasic/CabExplorer.asp

ZIP files:

The Zip, GZip, BZip2 and Tar Implementation For .NET
<URL:http://www.icsharpcode.net/OpenSource/SharpZipLib/>

The VB.NET Resource Kit contains zipping functionality too (note that the
Resource Kit is not available any more, so the answer applies for the case
that you already have a copy of the Resource Kit):

The Visual Basic .NET Resource Kit
<URL:http://msdn.microsoft.com/vbasic/vbrkit/>

It contains ComponentOne Zip for .NET:

ComponentOne Zip™ for .NET
<URL:http://www.componentone.com/product...3569&SubCategoryTypeID=0&TabMapID=57&TabID=70>

Using J#'s zip functionality:

Using the Zip Classes in the J# Class Libraries to Compress Files and Data
with C#
<URL:http://msdn.microsoft.com/msdnmag/issues/03/06/zipcompression/>

..NET 2.0 will contain ZIP support too.