This feature works when binary files (such as programs, dynamic libraries, and other executables in PE or NE format) are located in the directory opened. Or if the executable was dragged and dropped onto the Zoomer window, too. Also it is possible to run the Zoomer with a path to a certain executable as a command-line parameter.
The Zoomer can extract not only standard graphic resources, such as bitmaps, icons, cursors, but also looks for graphic resources in RC_RTDATA fields and can extract from there any graphic images such as in GIF or JPEG or any other supported format. For each extracted image a separate entry is created in a file list, and names of entries extracted from the same binary file are distinct with a suffix like #NNN. You can copy such images to clipboard or save to disk as usual, or to use Move-to-folders (but only for copying extracted images, the source binary itself stay intact in its original location).
Note: sometimes graphic resources can not be extracted. Sometimes this occur if the executable is stored compressed.