doesn't exist an exe because that tool is so old that at that time I didn't create multiplatform versions of code which used spoofed packets.
anyway the content of the packets is fixed so is better to use udpsz for the tests:
http://aluigi.org/testz.htm#udpszexample:
udpsz -l 500 -P CLIENT_IP -C "0f 06 62616e6e6564" SERVER_IP 23073 -1