i think u have to install .NET Framework on your computer.
also u can download with
RTMP EXPLORERX and
RTMPDUMP HELPER
HERE IS RTMPDUMP HELPER
Code:
http://stream-recorder.com/forum/rtmpdumphelper-t12719.html
rtmp explorerx
Code:
http://stream-recorder.com/forum/rtmpexplorex-open-source-improved-rtmpexplorer-rtmpsrv-suck-t12720.html