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TrueUpdate is a Dynamic Software Update System for integrating automated updating capabilities into software products. TrueUpdate provides a framework for determining required updates and retrieving and applying the necessary patch or installation files via Internet, intranet or LAN.
TrueUpdate is not a freeware or open source like other tools. A 30-day trial version can be downloaded from the link given below.



Setting up TrueUpdate
i Download latest version of TrueUpdate from http://www.indigorose.com/tu/index.php
ii Run the downloaded executable and install it to C:\citools\TrueUpdate.



How does TrueUpdate work?
TrueUpdate consists of two separate components:
- A client-side executable that runs on the user's system and
- A server-side data file located somewhere else (typically on a web site or FTP server on the Internet).

The TrueUpdate client contains a list of locations where the server file can be found. At run time, the client executable downloads the server file from one of these locations, and then uses the information in the server file to guide the rest of the update process.

The server file contains version identifiers and actions. The version identifiers enable the client to distinguish one version of software from another. They consist of criteria such as the value of a specific registry key or INI file entry, the version from a file's resource information, or the CRC value of a specific file. For instance, if the installer writes the software's version number to the registry, a version identifier could be used to compare the value at that registry key with a specific version number. If the values matched, that version would be identified. Once a version has been identified, the TrueUpdate client performs a series of actions associated with that version. For instance, if an update is available, the actions might instruct the client to download and then execute a patch file.

Source of Information : Enterprise Solution Providers, Inc. 2005 – v1.0