Changing file type icon

[ipep]

This was my first idea some time ago, but after some research I learned that the only way to change icons is to use external software (extra rubbish on HD). In Folder Options there is no tab for File Types any more as it was in previous Windows (I have Vista Home Premium edition).

I was more interested whether is it possible to change icons within TC. Since there is no way to change icons (excluding playing with the registry or installing new software) I've hoped there is way to change icons in TC.

Thanks for response anyway;]