Search:     Advanced search
Browse by category:
Glossary | Contact Us
Backup4all - Knowledge base / FAQs / Using Backup4all /


What does "The compressed (zipped) folder is invalid or corrupted" mean?
Print
Email to friend
Add comment
Votes: 0
Comments: 0

You receive this message because you are trying to extract files from a zip archive that was created using zip64 technology.

When creating the backup, if Backup4all estimates that the resulting zip file will not exceed 4 GB and will contain less than 65,535 files, it will create the zip using standard technology. The zip archive can be unpacked with any zip utility available on the market.

However, if the resulting zip file will exceed 4 GB (or have more than 65,535 files in it), Backup4all will use zip64 technology to create the archive, because this technology doesn't have limitations (regarding size or number of files). Zip files created this way can be opened with zip utilities that support the zip64 technology (e.g Winzip 9.1 or later).

Both types of zip files (with or without zip64) can be opened by Backup4all, and most zip utilities now use the zip64 technology.
Others in this Category
document Does Backup4all work with eSATA hard drives?
document I scheduled a backup job and it didn’t execute. What is the problem?
document What happens when I change the backup type?
document How can I give customized names to the zip files?
document How can I copy a backup job (create a new one similar to another)?
» More articles


RSS
Powered by KBPublisher (Knowledge base software)

  arrows Home / Knowledge Base / Knowledge Base
© 2002-2008 Softland. All Rights Reserved.
Free backup software download Backup4all
Take full control of your backup
Product InfoDownloadBuy NowReviewsHelpNewsAbout
ArticlesOnline HelpKnowledge BaseVideo DemosCustomer Support
homeHome   contact usContact us   partnershipsPartnerships   bookmarkBookmark   Site updated: 20-Mar-2008
DownloadsDownload

Download, install and use Backup4all Professional free of charge for a 30 day trial period. Version 3.11 build 300.

Free Download
promotionsSpecial Offers

Current discounts:
- 10% for Backup4all Professional
- 25% for Backup4all Standard
- up to 25% for network licenses
- 20% academic discount

buyBuy Now
Professional edition $44.95
(Save $5)
Standard edition $29.95
(Save $10)
Lite edition $19.95
Buy Now
newsLatest News

Backup4all 3.11 released
March 18, 2008

This new release introduces several fixes and enhancements, such as (read more):
 » Backup4all is now compatible with Windows Server 2008
 » Fully compatible with latest Windows Vista SP1
 » "Clean backup" option now available via command line too
 » Fixed compatibility issue when DEP was activated in Windows Vista
 » More than 80 backup plugins now available

ReviewsReviews

"To be honest, I always say <<I'll burn that backup folder someday this week>> and the week passes without having my files backed up.

Reviews

With Backup4all this issue can disappear, and the stress related to <<what if my hard drive crashes>> problem will disappear. I think that I'll leave the backup tasks for this program from now on. What about you?"

Codrut Nistor, Softpedia, Editor
awardsAwards

Backup4all was rated "Excellent" by SnapFiles.

Rated excellent by SnapFiles

To see more awards received by Backup4all, visit the Awards page.