Wednesday, October 11, 2017 B1 Free Archiver Portable, most friendly and simple free file archiver!
"We extracted ZIP and 7Z files and also compressed and uncompressed archives in the B1 format. Pop-ups simplify the process of setting up each step. We also like the B1 format’s powerful compression ratio. As we noted, we’re impressed by B1 Free Archiver. Anyone looking for a good compression utility should give it a try." —CNET staff, (April 17, 2013)
"Users should have absolutely no problem adjusting to working with B1 Free Archiver. It is simple and offers the exact options that a beginner would need but it also caters for the more seasoned ones. However, it is slower than other solutions in carrying out the tasks and in some cases, it needs plenty of RAM." —Ionut Ilascu, (July 9th, 2013 20:21 GMT)
"The program looks very clean and is a pleasure to use it, but supports only ZIP and B1 as compression formats. A major plus is that provides versions for many operating systems and mobile devices. Also, their native .b1 file extension supports a high compression ratio." — (date)
B1 Free Archiver is a 100% free archive manager. Supports most popular formats - b1, zip, jar, xpi, rar, 7z, arj, bz2, cab, deb, gzip, tgz, iso, lzh, lha, lzma, rpm, tar, xar, z, dmg and others.
   Works with split and password-protected archives, serves perfectly as a file manager.
   7-zip does not support this open source B1 format, so this app. complements 7-zip features.

Size: 90.0 MB (94,445,568 bytes) Packed Size: 27.2 MB (28,557,312 bytes)
MD5: 33E23BC188A02DB6422812D864ED89E3

More releases... More releases...

Release Details

Developer: Catalina Group Ltd. &
Requirements: Windows XP or later
Features: 7-Zip does not support this .b1 archive format
License: Freeware (Personal and business use)—EULA
Source: Included in the package (.ini files)

DIY/Do It Yourself: Upgrade to the Latest Release

Requirements 7-Zip, NPP/Notepad++ or other text editor, Launcher Generator/PAL, Installer/PAI.

  1. Get the latest portable app. template, and extract the content with 7-Zip.
  2. Get the latest B1 Free Archiver release:
    1. Get the latest version number from Majorgeeks, for example,
    2. Replace the "####" in this URL with that version number,
      so it becomes,
    3. Copy and paste that URL to a browser and download the B1 Free Archiver offline installer. Do not use download manager/accelerator, it won't work; use plain browser download.
  3. Put it in the same folder as the extracted template, in our example C:\0TEST, then extract the installer with 7-Zip to B1FreeArchiverPortable\App\B1FreeArchiver folder, Extract installer
    Into App\B1FreeArchiver
    Ignore the "checksum error" message, Ignore checksum error
  4. Browse to B1FreeArchiverPortable\App\B1FreeArchiver, delete:
    1. B1Shellext32.dll,
    2. B1Shellext64.dll,
    3. vcredist_x86.exe,
    4. WinSetup32.exe,
    5. WinSetup64.exe,
  5. Browse to B1FreeArchiverPortable\App\AppInfo and open appinfo.ini file with NPP. Replace the [Version] section with the latest version number. Make sure the PackageVersion entry is in 4 place digit, eg. not just 1.7.20,
  6. Run PAL, paste the template folder address C:\0TEST\B1FreeArchiverPortable, and click Go—a new launcher will be created, Create new launcher
  7. Test the new launchers by following this guide.
  8. When all is OK, then delete the B1FreeArchiverPortable\Data folder and run PAI, paste the package folder address C:\0TEST\B1FreeArchiverPortable, and click Go—to create the installer package. Create installer
  9. Use the installer package to upgrade your portable application. Don't forget to at least backup your Data folder before any upgrade :)
  10. If you find any changes that's not handled by the launcher, consult the PAL help file to modify the launcher yourself or ask for our paid upgrade support.

Portability Notes

  • B1 Free Archiver do not have portable mode. It stores its settings in Windows registry while running.
  • Make sure it exits cleanly before plugging out your thumbdrive.
  • You can help by sending request to the official developer to add "portable mode" to their future release.

Release History

  • Even though listed it as 1.7.122 and even Majorgeeks as, the internal version is still 1.7.120.

About the Publisher

B1 Online Archiver B1 Free Archiver portable, Settings B1 Free Archiver portable, Settings > Default open action B1 Free Archiver portable, Settings > Expert
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