Carriage return is '\r', linefeed is '\n'. Text files on Windows usually end lines with a carriage return and a linefeed character. But to answer your question: a carriage return has 1 character.

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MFC42D.DLL is the debug version of the MFC library and is only installed with Visual Studio. If you compile your program as a release version, it will use MFC42.DLL which is present on all Windows systems. Steven