Create Grafiken with your favorite painting program, and then convert them into icon files with this program. You can also convert icon files into different images. The program supports BMP, GIF, ICO, JPG, PCX, PNG, TGA, and RAS. You can change the dimensions and the color depths of the images when you convert them. You can also set pixels to transparent, or if the image has a color depth of 32 BPP (Windows XP icon format), you can set an alpha value for each pixel.
The program has its own menu in the right mouse button menu in Windows Explorer. There you can easily convert images from ICO, BMP, GIF, JPG, PCX, PNG, RAS, TGA to ICO, BMP, GIF, JPG, PCX, PNG, RAS, TGA.