Thanks again for sharing your knowledge on how to use
rtmpdump and mfc together.
In the meantime I´ve been messing around a bit with things and finally got it working.
Objectencoding is not needed, and in the windows version of RTMPDUMP, you´ll need quotation marks around everything that´s got an "&" sign or a space in it.
And finally... got stuck untill I realized that I had "-v" with a capital V lol!
Have a great weekend