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AuthorForum: PowerTCP Zip Compression for ActiveX
Topic: Corrupted while zipping the large zip...
karthiksp

From: West Palm Beach, FL USA
Posts: 60
Member Since: 08/04/05
posted July 6, 2006 11:13 AM

Hi All,

    I am trying to zip a large file around 7GB. It stops zipping the file around 4GB. When I try to extract the zip file to the local directory. It comes up with the following error

Extracting to "c:\"
Use Path: yes  Overlay Files: no
skipping: c:\foldername\database.DB this file is not in the standard Zip 2.0 format
  Please see www.winzip.com/zip20.htm for more information
error: no files were found - nothing to do

Following is the command I used in order to zip the large file.

SpanSet = CREATE OLEObject
SpanSet.ConnectToNewObject("Dart.SpanSettings")
iole_dart_zip.FileStore.Load(as_zip_file_name)
iole_dart_zip.FileStore.Zip(as_zip_file_name, SpanSet)
iole_dart_zip.FileStore.Add(as_files_to_zip, True, True)
iole_dart_zip.FileStore.Zip(as_zip_file_name, SpanSet)

Our application is Powerbuilder 10.0

Could someone please tell me why the large files are not getting zipped fully and it is corrupted.

Any help is greatly appreciated

Thanks
Karthik
Tony Priest



From: Utica, NY USA
Posts: 8466
Member Since: 04/11/00
posted July 6, 2006 11:36 AM

It sounds like you have an older version of the Zip tool. We added support for large files with version 1.8.2

Try downloading and installing the latest version from our website and see if the problem continues.
karthiksp

From: West Palm Beach, FL USA
Posts: 60
Member Since: 08/04/05
posted July 6, 2006 3:01 PM

Hi Tony,
 
   As you mentioned, I downloaded the latest dartzip.dll that has the version of 1.8.3.0

   I registed the new dll with our serial numbers.

   I dropped my ole and recreated the ole and tried it. Same old problem I am getting. It stops after it zips to 4gb of file. Total file size is 7 GB.

Please help us what can we do about this.

Thanks
Karthik
Tony Priest



From: Utica, NY USA
Posts: 8466
Member Since: 04/11/00
posted July 6, 2006 3:05 PM

Do you get the error if you zip the file using our FileSearch sample?
karthiksp

From: West Palm Beach, FL USA
Posts: 60
Member Since: 08/04/05
posted July 6, 2006 3:52 PM

I tried zipping the 7GB file using the Filesearch example. The progressbar went as if it finished. I checked the zipped file. It is almost 6 GB.

When I try to open the Zip file using winzip I got the following error

"ARCHIVE IS GREATER THAN 4 GIGABYTES"

Let me know what the issue is

Thanks
Karthik
Tony Priest



From: Utica, NY USA
Posts: 8466
Member Since: 04/11/00
posted July 6, 2006 4:07 PM

Winzip is telling you that it does not support Zip files that are greater than 4 gigs. I have version 10 here and it works fine for me. I tested by zipping a 10 gig file.

karthiksp

From: West Palm Beach, FL USA
Posts: 60
Member Since: 08/04/05
posted July 10, 2006 10:03 AM

Tony,

   I know I will get a reply from you. Thanks a bunch. You are a great asset for us.

Karthik
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