GkSetup ECommerce-Edition - description from Softdepia.com:
GkSetup is a Setup-toolkit for Windows 95, 98, ME NT4 and Windows 2000. It allows you to create professional installations for your software. The self-extracting single-file Setups are ideal for internet distribution. The easy user interface will reduce your support calls. A detailed feature list that compares the Free- and Professional-Edition is available on the feature comparison page.
GkSetup ECommerce-Edition is a "Free to try" program. You can download and try it for an evaluation period.