ZipStream V103b Update Announcement
 ===================================

 ZipStream - the next generation disk compression software
             for OS/2.


 V1.03b Update Information
 =========================

     Fixes :

     1.  Correct problem with moving files between two ZipStream paths.
     2.  Correct potential problem with reattach logic of zsattach.
     3.  Correct problem with copy file with EA's in DOS session using 
         standard OS/2 command processor.
     4.  Correct problem with zsunpack decompressing files compressed
         with the /A option that had negative compression.
     5.  Correct problem with Workframe V1.1 opening project files.
     6.  Correct problem with Demon intermittently crashing on startup.
     7.  Correct problem with Recon, GCP and ZipStream.

     Improvements:
     
     1. Improve performance during startup, so that attachments occur earlier
        in the boot cycle.
     
     2. Improve install so that the config.sys is not needlessly updated.
     
     3. Search cache is now persistent across boots, resulting in much 
        improved directory search performance.
     
     4. Search cache now uses a hash bucket hash probed segmented LRU 
        algorithm for improved performance.
     
     5. I/O priority boost now feed back into requesting threads for improved
        performance.
     
     6. Background compression on diskettes is now given priority.
     
 ========================================================================
     
 
 Introducing ZipStream
    ZipStream is an exciting new concept in automatic file 
    compression, that harnesses the power and features of 
    OS/2 2.X and Warp.

    ZipStream is the safe disk compression software
    for OS/2 2.1 and Warp.

    It is an OS/2 Installable File System 
    (IFS) that mirrors access to existing OS/2 File 
    Systems, and simultaneously provides automatic, 
    transparent file compression and decompression.

    Its 32 bit implementation exploits OS/2's pre-emptive 
    multi-threaded processing capabilities, which allows 
    for complex processing to be carried out in the most 
    optimum manner.

    ZipStream's transparent background compression 
    operations and intelligent caching techniques means 
    there is no noticeable loss in system performance.


  ZipStream's Features
    * Supports HPFS and FAT File Systems.
      Any OS/2 supported file system can be utilised.

    * Supports Diskettes.
      Diskettes don't have to be specially formatted, just attach and
      compression is available.

    * Supports LAN File Systems.
      Any LAN file system that is mapped as a drive letter can be
      used for compression operations. Additionally, there are no
      Server overheads, as all compression operations are performed
      by the workstation.

    * Supports Long File Names.
      No restrictions are imposed other that those imposed by OS/2's
      native File Systems.

    * Supports Extended Attributes.
      Full support of Extended attributes and compatible with OS/2's
      Workplace Shell.

    * Automatic Compression of New Files.
      Newly created files or any files copied to the compressed drive
      letter are automatically and transparently compressed.

    * File Based Compression not Disk Based.
      Being file based, you have complete control of what files are
      compressed and what are not, that is, uncompressed files can
      reside on the compressed drive.

    * Ultra High Compression Ratios.
      Using state of the art and background compression techniques
      yields compression ratios equal to that of popular archiving
      programs.

    * Native OS/2 32 bit Application.
      This isn't a port of a DOS compression application, it's been
      built specifically for OS/2 and designed to get the most out of
      OS/2.

    * Outstanding Performance.
      Background compression and 32 bit code gives real pay offs in
      performance.

    * No Reformatting Required.
      Just attach to a driver letter or path and compression is
      available.

    * No Container Files.
      Using existing File systems means reliability and safety.
 

 System Requirements
    If you are capable of running OS/2 2.1 or higher, you
    can take advantage of ZipStream.

    In case you're still unsure, ZipStream has the
    following requirements:

    * A PC that is supported, and is capable of running
      OS/2 2.1 or higher.
    * At least 4 MB of RAM, 8 MB recommended, 16
      MB perfect.
    * At least 10 MB of swap area is recommended.
    * A 386 or better CPU, 486 highly recommended,
      Pentium outstanding.

 Available from
 ==============

 Carbon Based Software                 Fax: [61] (75) 29 1544
 PO Box 912                            CompuServe 100351,2052
 Runaway Bay Qld 4126  
 Australia

 OS/2 Express
 4604 Chicago Ave
 Minneapolis, MN 55407
 USA

 Ph: 1-800-OS2-KWIK ( 1-800-672-5945 ) or (612) 823-6255




 ZipStream is a trademark of Carbon Based Software.
 IBM and OS/2 are trademarks of International Business Machines 
 Corporation.
 Pentium is a trademark of Intel Corporation.