No. There is no client for dos. Even though the program runs in a dos box it is not a dos program. It is a Windows 32 PE (portable executable) file. This means it depends off of Windows libraries(Kernel32.dll and WS2_32.dll) among many other files that are loaded by those files. If you run the CLI in dos it will say something like "You have to run this in Windows" Also, if you were to hex the file adding a valid dos header and taking off the windows header, it will cause dos to hang and crash(this has been tried before).