I just tried... I downloaded 3 different files from the HPCFactor TCPMP download area.. 1
) One of the cab files, 2
) The big one which contains all the source info, and 3
) the one in question.
All 3 downloaded fine, all decompressed fine, I couldn't find anything wrong with tcpmp.other.cabs.0.72RC1.zip. It contains all the cab files and they all decompress and install perfectly.
I'm using Winzip 12.0. Wonder what everyone is using that is not working for them...
*** Additional info ***
Out of curiosity, I just downloaded 7Zip 4.65 and tried to open tcpmp.other.cabs.0.72RC1.zip with it. It also worked perfectly. The only thing I can think of is perhaps they got a bad download...