Probably a bug
Even when the binaries are present it is showing they aren't
only happens with binaries with suffix '.exe'
FEATURE REQUEST
What about a preprocessor section in which we can assign specific preprocessor other then which can be used with freearc to the specific files not always dependent on masks
something like ogg comes with UltraARC but user define and not masks dependent but we can make our own list
for Example GTA V, it has all major files with extension .rpf but only some of them can be process with something like reflate and other are incompressible multimedia containers.
and also if the program is single threaded if arcGUI can feature multi TASK
ANd yes most important thing, thanks for such a good program
and one more thing let the arcGUI to search in %PATH% for arc.exe