KSV, that what exactly what I was thinking. You can call it rtmpdump-KSV.
Of course it would be better if all contributions were collected in a collective collaboration, but we would of course rather see KSV realease his improvements as rtmpdump-KSV than not seeing them at all.
Offtopic:
By the way, here's another version of rtmpdump 2.3, with some small buggfix and made to compile in Visual Studio:
http://www.warezerver.net/rtmpdump.html
Just to add to the confusion...