Binary differencing is the process of analyzing two files and then compactly representing the differences or “delta” between them. Also known as “delta compression,” binary differencing is able to represent the data that differs between two files in the most compact way possible.

The most common application of binary differencing is in creating software patches. This involves analyzing two versions of a file in order to extract only the data that has changed from one version to the other. The results of this analysis can then be used to recreate the newer version from any file that exactly matches the original. By only containing the differences, such a patch file can be very small.

Of course, there are many other uses for binary differencing beyond deploying software updates. Because so little data needs to be transmitted, delta compression makes it possible to distribute changes to large data files as efficiently possible.

Key Features

• Very fast encoding. DeltaMAX is able to perform multiple passes in less time than it takes other tools to perform a single pass.
• Fast decoding. DeltaMAX uses efficient file I/O buffering in order to apply differences quickly.
• Low memory requirements for decoding. DeltaMAX requires only minimal amounts of memory for decoding, and is able to apply differences in low memory situations.
• Compact encoding format. DeltaMAX uses a custom encoding scheme that is very efficient.
• Unique multi-pass optimization. DeltaMAX can perform multiple encoding passes in order to experimentally achieve the best results. This is especially important because the optimal settings can vary according to the unique internal structure of each individual file.
• Works with all file types. DeltaMAX can create differences for all kinds of files (e.g. software executables, word documents, satellite images, medical databases, ocean maps, game data files…)
• Support for large files. DeltaMAX is exceptional in its ability to handle very large files (up to 2GB) and to encode these large files very quickly.
• Developed for Windows. DeltaMAX was developed specifically for the Windows platform, and does not sacrifice performance to achieve platform independence.

Benefits of Binary Differencing

Binary differencing is the process of analyzing two files and then compactly representing the differences or “delta” between them. Also known as “delta compression,” binary differencing is able to represent the data that differs between two files in the most compact way possible.

This technology is most commonly used in software updating and patch management applications, however it is also ideal for use in backup software, server synchronization, data transmission or wherever the environment calls for reduced storage space and lower bandwidth usage.

Having less data to transmit means that file changes can be sent and received faster, which means less time is spent waiting for updates, improving productivity and making “background” updates possible.

In addition to reduced file sizes, binary differenced files are very secure. Difference files contain only the byte level differences between the two source files. Transmitting only tiny portions of a file in a format that can’t be used without the original greatly reduces the risk of unauthorized use.

Competitive Position

Some binary differencing libraries claim to include large-file support, but they process large files so slowly that it really isn’t feasible to use them for that purpose. DeltaMAX uses a unique binary differencing algorithm that was developed to process very large files as quickly as possible. It does this while also achieving the best compression performance possible on all file sizes, large and small.

For example, in benchmark testing DeltaMAX was able to create a patch for a 1.2 GB data file in under 3 minutes, whereas the nearest competitor we tested required more than 70 minutes to process the data on the same system. Some of the competing libraries we tested were not even able to process such a large file, and either failed completely or were still processing after more than 24 hours.

Remarkably, DeltaMAX achieves its speed without sacrificing performance, creating difference files that compare favorably in size to difference files created by other tools. In fact, the speed of DeltaMAX permits additional size optimizations that are not feasible with other tools. For example, it can perform multiple passes with different settings in order to find the optimal parameters for each particular file-and still manage to do so in less time than competing tools require for a single pass!

More Information:

1. DeltaMAX 2.0 Product Brochure DeltaMAX is an advanced binary differencing engine. It is capable...
2. Product Features DeltaMAX is an advanced binary differencing engine library for Windows....
3. Online User’s Guide The best way to get started with DeltaMAX is to...

Click on any of the screenshot images below to see a larger, more detailed version.

More Information:

1. Product Features Visual Patch 3.0 is the fastest way to create compact...
2. Visual Patch 3.5 Product Brochure Visual Patch 3.0 can figure out what files have changed,...
3. Online User’s Guide The easiest way to learn how to use Visual Patch...

Setup Factory 7 Training Chapter 1

Welcome to Setup Factory – Introduction to this CD-ROM

Welcome to Setup Factory – Installation and authorization

Welcome to Setup Factory – Troubleshooting & Support options

Welcome to Setup Factory – Methods used on this CD

Setup Factory 7 Training Chapter 2

Workflow and Workspace – Workflow Overview

Workflow and Workspace – Workspace Introduction

Workflow and Workspace – Application Preferences

Setup Factory 7 Training Chapter 3

Quickstart Guide – Let’s build our first project

Quickstart Guide – Let’s add some documents

Quickstart Guide – Let’s add some folders

Quickstart Guide – Adding serial number protection

Quickstart Guide – Adding a desktop shortcut and web link

Quickstart Guide – Let’s add a secondary application

Quickstart Guide – Let’s create user-selectable packages

Quickstart Guide – AddingLet’s add Windows registry interactivity

Quickstart Guide – Adding/Removing Screens

Quickstart Guide – Lauching a web site instead of a thank you screen

Quickstart Guide – Adding system requirements

Quickstart Guide – Applying window and background styles

Quickstart Guide – Adding multilingual support

Quickstart Guide – Logging the installation details to a file

Quickstart Guide – Editing session variables

Quickstart Guide – Creating installers which expire

Quickstart Guide – Customizing the application uninstaller

Quickstart Guide – Launching your program after installation

Quickstart Guide – Creating a silent installer

Quickstart Guide – Adding a dependency module

Setup Factory 7 Training Chapter 4

Themes – Introduction to themes

Themes – How to create a custom theme

Themes – Add your theme to the theme library

Themes – Editing theme properties

Themes – How to use a theme in a project

Themes – Extending themes

Themes – Chapter Summary

Themes – Where to get more themes

Setup Factory 7 Training Chapter 5

Actions and Scripting – What are actions?

Actions and Scripting – Building a simple “Hello World” script

Actions and Scripting – Expressions and operators

Actions and Scripting – Variables

Actions and Scripting – Control Structures

Actions and Scripting – The IF Statement

Actions and Scripting – ELSE and ELSEIF statements

Actions and Scripting – FOR, WHILE, and REPEAT loops

Actions and Scripting – Tables

Actions and Scripting – Using FOR to enumerate tables

Actions and Scripting – Functions

Actions and Scripting – Returning values from functions

Actions and Scripting – Some basic string manipulation

Actions and Scripting – Using TYPE to identify variable types

Actions and Scripting – DOFILE and REQUIRE

Actions and Scripting – Using the “Add Code” button

More Information:

1. Setup Factory User’s Guide It is extrememly easy to get started with Setup Factory...
2. Overview of Setup Factory 8.2 Use Setup Factory to easily create professional and reliable installers...
3. Frequently Asked Questions for Setup Factory Setup Factory 8 is your best choice for creating rock-solid...