ICU – Icon Configuration Utility
Restore your desktop when the icons get “rearranged”.
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MysticThumbs
MysticThumbs generates thumbnails of many image types not natively supported by Windows. It does this transparently and in the background for Explorer so you don't have to run a separate application to preview your images.
ReIcon
ReIcon is portable freeware that enables you to save and restore your desktop layout. If you frequently change your screen resolution (e.g. to play games or use applications that require a specific resolution), you are probably familiar with the problem of your desktop icons...