UltraEdit's file comparison cannot select binary items.
Because of the problem with the UltraEdit version you are using, the UltraEdit Pro version of file comparison is a slimming module, and UltraEdit official website has an UltraCompare, which contains all the functions and features of comparison. You can go to official website to download a 30-day trial version of UltraCompare. (Of course, you can also Baidu one ...)