InstallAware Developer for Windows Installer
InstallAware lets you create Windows Installer setups the traditional, script-driven way. Author a branching, conditional script and InstallAware magically converts it to a logo-compliant Windows Installer database, with web deployment capabilities.
LizaJet Installer for Delphi Developers
Contains everything a Delphi Developer expects from a professional Installer. Enjoy the integrated Object Pascal language and Studio. Installer inheritance, automatic upgrade, wizards, Dialog Editor, debugger, event handlers. Version Manager
Ghost Installer Free Edition
Ghost Installer 2.1.1 is a new amazing installer. Without loosing sight of its primary purpose Ghost Installer offers an extremly small and extensible engine. The most important feature is the Installer's ability to use Plug-Ins.
AWinstall
AWinstall is a professional, effificient and easy-to-use setup builder for creating compact and intelligent setups for your Win32 and .NET applications. The minimal installer footprint is just about 40-70 KBytes, depending on selected components.
InstallSimple
Install Simple is a very compact (only 49 KBytes) and powerful program to build your installs in seconds instead of hours! Designed for anyone who distributes applications, data files, graphic images or whatever else you want to distribute!