You can download a portable version of Wireshark with the plugin here. Just start WiresharkPortable without installation.
You need to install WinPCap for packet capturing (or else, you can abort this starting step proposed each time you start the program).
We only propose the binary asterix.so (here). You have to install Wireshark separately and add asterix.so with other plugin library (often /usr/lib/wireshark/1.0.7).
You can test our plugin with the next packet capture files :
Unfortunately, no english documentation is provided ! If you do not know how Wireshark works, see www.wireshark.org for more information. Anyway, you should be able to try our plugin just by downloading and opening some example file.
And of course, if you understand the french language, you can refer to the french wiki pages for more informations !