GifWeb and Hotspots Imagemaps v3.1 <ASP>.
Converts GIF, BMP, JPEG, TIFF, etc.
files to transparent background GIFs.
Supports dithered color backgrounds.
Optional grey, black or white background. 
Hotspots Imagemap Tool to create imagemaps
for web pages.  Rectangles and polygons.  
Easy to use and intuitive.