Early last year I posted an article about changing icons and file associations in Vista. The bad news is that nothing seems to have changed natively in this regard for Vista. Perhaps things will be different in Window7… who knows.
The good news though is that I have since found a much nicer program for assigning your own icons:
Types
“Types” is a free and lightweight utility for Windows that allows you to edit program associations, icons, context menus and other properties of various file types displayed in Explorer.
When I first tried it out way back in the beginning of last year I had a few difficulties but when I recently setup a new development VM and had a need once again to customize my clarion file associations I gave it another go. This time round they have made great improvements in stability and it performed beautifully and did what it said it would. No more, no less.
Hopefully someone will find this useful too.