SIBuilder (Small Installation program Builder) is a freeware software installation program creator that creates a stand alone executable software installer with little overhead taken up by the installer. This makes the program an ideal development tool for creating a single, self-extracting (sfx) installation programs for distribution over the Internet. The installer is a Windows command line (or console) application. Key features of SIBuilder are that it:

• Has optional uninstaller that is registered with the Control Panel "Add/remove programs" applet.
• Installs files and folders -- can selectively overwrite existing files depending on age or version information.
• Updates registry with new keys and data
• Can be customize installations for different Windows operating systems.
• Can execute other programs -- which makes it simple to extend SIBuilder's functionality.
• Registers COM servers, shared DLLs and applications with Windows.
• Optionally displays a license agreement.
• Can automatically uninstall other installations before proceeding with the installation.
• Uses a wizard style interface to simplify creation of install projects.
• Provides a choice of compression algorithms used to compress the install program and has ability to have new compression systems plugged into program.

SIBuilder no longer requires a copy of Borland Delphi to compile the install programs - it now uses its own built in packaging technology to create them. However, the ability to use Delphi, where present, is still available as an option.

An on-line tutorial describing how to use SIBuilder is available on the program's home page. The tutorial walks through the creation of an installation project based on some files provided with SIBuilder.