>I think it boils down to the fact that people have to learn the underlying technologies and go from there. There are many ways to take advantage of the Windows Installer. IS Express is a good start for the casual developer; IMHO a professional developer with a large installed base needs a better tool - many of which are available at a decent price, all things considered.

I agree with that. Being a corporate developer, my installs are minimal, as I generally have very few users. For apps with widespread use, they have a web interface anyway. For the few installs I need, ISE works nicely or me. If I had to deliver to the open market, or to external customers as I did when independent yers ago, I would not hesitate in upgrading to the full tool. Now, does that make me a "casual developer", as you put it? <g>