A: If you install DJGPP on anything but Windows 9X, just ignore that error message about g++.exe and use gpp.exe or gxx.exe to compile C++ programs. g++.exe is an invalid file name on DOS, but is allowed on Windows 9X. It is included for compatibility with Unix, where the C++ compiler is called g++. All g++.exe does is just to run gxx or gpp. So you don't lose much by not having it.