Clicking onto rtmpdump.exe won't help to use it. You need to open the command prompt, then go to the directory where your rtmpdump.exe reresides using the CD command. The launch rtmpdump.exe like in the following example:
Code:
rtmpdump.exe -r "rtmpe://viacomlogostrmfs.fplive.net:1935/viacomlogostrm" -a "viacomlogostrm" -f "LNX 10,1,102,65" -W "http://media.mtvnservices.com/player/release/?v=4.11" -p "http://www.logotv.com/video/misc/614184/drag-ya-laters-jon-and-john-meet-the-queens-interview-3.jhtml?id=1651951" -C O:1 -C NB:0:0 -C NS:1:mp4:gsp.egvrenditions/logoonline.com/2011/01/18/02/10/01-15-10RPDR_On_Set_384x288_450.mp4 -C O:0 -y "mp4:gsp.egvrenditions/logoonline.com/2011/01/18/02/10/01-15-10RPDR_On_Set_384x288_450.mp4" -o 01-15-10RPDR_On_Set_384x288_450.flv
rtmpdump is not an easy to use utility. It is much easier to use it with rtmpsrv and rtmpsuck in Linux. It is easy to install Linux like free Ubuntu. And you can even install the latter from Windows using WUBI, although I recommend to use dual boot or install it onto a virtual machine like Virtual Box.
rtmpsrv can be used in Windows sometimes. See the following threads for more
http://stream-recorder.com/forum/tags/rtmpsrv/