Photomatix Pro is a tool for optimizing images for Windows that lets you get really good results with high contrast photos.
Its effect is based on two methods. One of them is based on a mixture of two or more versions of the photo with a different dynamic range. The other is to highlight the details of the shaded elements achieving truly optimized view.
It also includes several standard editing features you can tweak the images to be optimized, thus achieving better results. All this makes a utility that Photomatix Pro is worth trying.