Digitalweb InstallWizard is sold in three different editions. The Standard version includes all the basic functionality required to create any normal installations. The Professional version contains all the functionality of the Standard version plus some extra tools and the MSI contais all features plus the hability to build MSI (Microsoft Windows Installer) installations. 

InstallWizard - Version Comparison	Professional	MSI
Basic features are available. Like registry modifications, INI-File modifications, Shortcuts, file associations, etc..
Create update programs (check previous installations and update)
Rich text support (display formatted text)
Multiple disk spanning / single file (divide or create a single executable installation)
System information retrieval (Verify destination system properties and compare)
NT Services Add/Remove Windows NT Services
Internet - Network Installation Download the files directly from the installation and save to target computer
Unicode Support SUpport for ANSI/Unicode double-char
Customizable outlook and slideshow Modify the outlook of the background window and display slideshow during installation
Shared DLL, ActiveX control and Type library support Automatically register DLL,OCX,TLB and other files
Autorun Launcher Create fully customizable autorun launch to your CD or DVD
Dialog Editor Edit and properties of the dialogs shown during installation and add new dialogs
Theme Support Change the outlook of entire installation or create your own theme
LiveUpdate Automatically retrieve updates to your own program
Install 3rd-party components (Automatically install components, such .NET Framework, etc)
MSI Support Create installations based in MSI (Microsoft Windows Installer) technology -Install-on-demand (via MSI) -Application auto-repair (via MSI)
MSI File Support Run custom DLL, EXE, VBSCRTIPT and JSCRIPT files under MSI.
Build 32-bits or 64-bits installations
Merge Modules Support Add reusable components (Object/Merge Modules)
Price	$89	$169