What are some alternatives?
When comparing InstallBuilder and WordPress, you can also consider the following products
Inno Setup - Inno Setup is a free installer for Windows programs.
WiX - Create a free website with Wix.com. Customize with Wix' website builder, no coding skills needed. Choose a design, begin customizing and be online today
NSIS - NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows...
Drupal - Drupal - the leading open-source CMS for ambitious digital experiences that reach your audience across multiple channels. Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions.
InstallShield - If your software targets Windows, InstallShield is your solution.
SquareSpace - Squarespace is the easiest way for anyone to create an exceptional website. Pages, galleries, blogs, e-commerce, domains, hosting, analytics, 24/7 support - all included.