Orange C 5.64.1 is released

This version adds the ability to use the WIN32 help files locally. During a configuration phase, the help files are downloaded from the internet; then CTRL-F1 can be used to get context-sensitive help. It is possible to also get the C/C++ help files and install them side by side with the WIN32 help files. However, these help files have a lot of detail that is not available with Orange C, for example the MFC help.