Category Archives: General

New Evaluation Libraries

The Linux and Windows evaluation libraries have been updated, and are set to expire on December 31st, 2017.

These libraries include the new COBOL support changes, updated support for legacy custom ISAM formats, and all stable updates.

Please contact us if you need an evaluation library for other targets.

The following features did not make the cut, and another update will be posted when they are ready.

  • integrated JSON syntax encoder and parser
  • integrated support for legacy (flat record structure) ISAM files
  • expanded support for Swift, Python and JScript

Documentation Published

After far too many delays, the DISAM manual is ready.

This includes a complete reworking and update of the original read folder references, adding cross references and a proper index, and a translation into structured text, from which we are able to publish the manual in virtually any form.

You can download DISAM manual in zip format, or DISAM manual in gzip tar format in html, man and stx2any formats, or see the link above for the inline reader.

Please understand that this is a work in progress, and will have typographical or other errors, and we appreciate your patience, and especially your comments, should you happen to find any.


Refreshed January 28th, 2015.

Please Note:
If you have special requirements please don’t hesitate to contact eval @ (without the spaces around the @).

Same goes if you need a platform not listed. Just because we don’t have an evaluation for your platform does not means DISAM is not suitable for your environment.
DISAM will work in most environments that can handle a standard C library.


Windows Evaluation Downloads

Evaluation package for 32 & 64bit Windows is now available on the Downloads page.

The evaluations are “plain vanilla” compiles – no compiler options used at all, and should link and run on all standard windows x86 and x64 targets.

Included in the evaluation package are static libraries and base and wrap dlls for win32 and win64. Libraries are also included for a direct work-alike with CISAM.

Should your requirements need a custom configuration to evaluate, please let us know by email.

Linux Evaluation Downloads

DISAM Evaluation packages for 32bit & 64bit Linux are now available on the Downloads page.

March 28, 2014: Fresh downloads are now available.

Included in the evaluation package are libraries for a direct work-alike with CISAM.

Should your requirements need a custom configuration to evaluate, please let us know by email.

Coming in 2015

We will be introducing a Free DISAM Developer License early in 2015.

The license will expire each 120 days but can be easily renewed by simply doing another request for a link to download a refreshed package.

The free license is intended to make evaluation, development and testing easier but is not to be used for the distribution of any DISAM’d product.

A commercial license will be required for any distribution, whether free or for profit.
The commercial license will include complete DISAM source while the free evaluation/developer license will only include the DISAM library, tool binaries  and required header files.


Welcome to Byte Designs and DISAM. DISAM is a very efficient file handler using the Indexed Sequential Access Method to provide fast and direct data access.

DISAM is suitable for new development as well as to access Legacy  data that may have been created using CISAM / C-ISAM by Informix.