Cannot extract icon from files other than dll, ico or exe

Selecting file with extension other than ICO, DLL or EXE for icons (for example CPL)

ERROR: "You must select a valid image file."

This is fixed in version 10.1.1 - see KB 7001406 "ZENworks 10 Configuration Management 10.1.1" which can be found at https://www.novell.com/support

Workaround:
Take a copy of the file, and rename it to have a "valid" extension, such as EXE