Open Source Installer

Open source installer tool
NSIS (Null soft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of successful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components.
Open Source Java Tool Installer
MyJavaPack is a platform independent installer of Java developer goodies. This distribution contains valuable, up to date, Open Source software. The software breakdown is: dev tools (e.g. Ant, Eclipse), frameworks (e.g. Hibernate, Spring, Struts, Velocity), servers (e.g. JBoss, Tomcat, HSQL, MySQL), and admin tools (e.g. MySQL Administrator, Webmin). MyJavaPack Home is open source software trying to fill basically the same niche. It does installation of lots of Java development tools and a few common open source tools that aren't just for Java (e.g. MySQL). It doesn't have as many different tools it can install nor does it offer to install example projects which use subsets of the other tools to confirm that installed everything correctly or to give you a quick starting point for your own work.
Litestep Open Source Installer
Download the beta from the downloads section and save it to a place where you can easaly find it, like your desktop. Use it in every way you can think of, then report back on what didn't work. But don't just run it once. Try it as many times as possible, with different options every time. The more senarios you can try, the better. This site provides free project hosting for the LiteStep community. Project hosting and software development tools are available to anyone with a project idea that is somehow related to LiteStep. From here you may browse the active projects or start your own.
Quake3 Open Source - Installer on several Platforms
Quake 3 source code has been released under GPL by id Software .The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things.
Sugar Open Source Installation Guide
The contents of this document are subject to the Sugar Public License and the SugarCRM Community License Agreement You may not use this document except in compliance with the License that you choose. Software and documents distributed under the License are distributed on an �AS IS� basis, without Warranty of any kind , either express or implied. All SugarCRM logos in this document are registeredtrademarks of SugarCRM Inc. See the SugarCRM trademark policies at www.sugarcrm.com/trademark for more information on how SugarCRM trademarks can be used.
Open source, multiplatform installer and builder
InstallJammer is a multiplatform GUI installer designed to be completely cross-platform and function on Windows and most all versions of UNIX with eventual support for Mac OS X. It features a very powerful install builder with support for multiple themes and a high level of configurability for installers. Installers are built as single executable files for easy distribution over the web and handle installing everything you need for your application in a simple, cross-platform way. The InstallJammer Team is pleased to announce the release of InstallJammer 1.0.2. This release fixes some minor bugs that have been reported since the 1.0.1 release.