Customizing file type icons in Windows 7, unfortunately, isn’t as easy as in Windows XP. If you’re interested in changing the default icon of certain file types in Windows 7, you can use a third-party program like Types.

How to customize file type icons using Types
1. Extract the program from the archive and double-click the exe file to run it.
2. Right-click the icon that you want to change and click “Properties”.
3. Click the icon tab.
4. Select an icon from the available list and double-click it to replace the standard icon.
5. Or, click the browse button and navigate to your icon collection to replace the standard icon with a custom one.

Types is a free, portable application. It is compatible with Windows 7. It’s been tested only on Windows 7 32-bit. You can download Types from the developer’s homepage
Tags: file type icon, windows icons


#1 by Jim
This utility would be better if you could change the icon separately for each file type. From what I’m seeing, if you change the icon on one file type it sets the same icon on ALL file types. It’s not much improvement over the default Windows 7 behaviour.