Thumbico displays the thumbnail or icon of any file, image, document, video or program from your Desktop or computer. But unlike Windows, which shows you small, standard sized images, Thumbico gives you the large, any size "uncensored" version. Thumbico offers image saving and copying, a Glass Mode for screenshot or screencast purposes, custom or standard sizes, and drag and drop support.
No installation is required. Simply download Thumbico to a location on your computer (e.g. your Downloads folder) and open/run the program from there.