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About Reducing the Size of Siebel Client Executables Upgrade Kits

This topic describes a feature called the delta installation upgrade kit type for a Siebel Client Executables upgrade kit.

This topic is part of Preparing Upgrade Kit Contents.

It is possible to reduce the size of some Siebel Client Executables upgrade kits, which also reduces the time it takes users to retrieve and install these upgrade kits. This reduction in upgrade kit size is accomplished by creating the delta installation type of Siebel Client Executables upgrade kit (as opposed to a standard installation upgrade kit). Delta installation upgrade kits contain condensed information about specific changes to client executable files, instead of an actual set of the new executable files.

When you create a Siebel Client Executables upgrade kit, you choose whether to create it as a delta installation upgrade kit or a standard installation upgrade kit.

NOTE:  Delta installation upgrade kits are suitable for delivering Siebel maintenance releases, including fix pack releases, that contain relatively few changes to client executable files. For example, you could use a delta installation upgrade kit to upgrade Siebel CRM client executables from version 8.1.1 or version 8.2.2 to version 8.1.1.11 or version 8.2.2.4, or from version 8.1.1.5 or version 8.2.2.1 to version 8.1.1.11 or version 8.2.2.4. Delta installation upgrade kits are not suitable for major upgrades, such as to upgrade Siebel CRM from version 8.0 to version 8.1.1 or version 8.2.2. In addition, delta installation upgrade kits are not suitable for adding languages.

You can create delta installation upgrade kits for the Siebel Client Executables base (language-independent) component or for each language-specific Siebel Client Executables__language-code component that is for a language that your users already have installed.

CAUTION:  If you want to add an additional language for your users, do not use a delta installation upgrade kit to add that language. Instead, use a standard installation upgrade kit. That is, create an upgrade kit for the Siebel Client Executables__language-code component and select Standard Install as the installation type for the upgrade kit. Delta installation upgrade kits are not supported for the addition of a new language. If a delta installation upgrade kit is incorrectly used to install a new language, it can damage some client executable files.

Before defining a delta installation upgrade kit, a Siebel administrator must use the Siebel Patch Utility (siebpatch.exe) to create a delta patch file. This is a file that contains information about the changes that were made to client executable programs between two specific Siebel releases. For details, see Creating a Delta Patch File.

Users retrieve and install delta installation upgrade kits just as if the upgrade kits contained complete sets of client executable files. When a delta installation upgrade kit is installed, the Upgrade Wizard applies the changes that are described in the upgrade kit to the user's existing client executable files, rather than replacing the user's files.

Depending on the release you are installing, users might need to upgrade the Upgrade Wizard before installing a delta installation upgrade kit. In this case, a Siebel administrator must define an Upgrade Wizard upgrade kit, and make any delta installation upgrade kits dependent on that Upgrade Wizard kit. For more information about whether this requirement applies to you, see the release-specific documentation for the release you want to install.

For more information about the process of creating delta installation upgrade kits, see Roadmap for Creating a Delta Installation Siebel Client Executables Upgrade Kit.