I was referring specifically to the limited case of executables. As I mentioned, executables in Windows have a resource that is the icon. There's probably no re

I was referring specifically to the limited case of executables. As I mentioned, executables in Windows have a resource that is the icon. There's probably no real security issues in having a photo show up with a Word document icon. Windows File Manager (which was used till Windows 3.11 and Windows NT 3.51) doesn't show generated thumbnails, although Windows Explorer does.