Convert icon to dds Online: icon2dds

You can use Tom's Editor to easily convert images from
Sun icon image .ICON to Direct Show Surface .DDS.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

ICON

Sun icon image is an image format with extension ICON.

DDS

DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.