I found this article about how to fix high ping (to gaming servers). The article is here if anyone can try it out ( I don't have ping problems with CF server ) Windows 7 High Ping Fix - Windows 7 Help Forums
Please share your results if any here!
PS. Another program to fix ping can be TCPoptimizer - SpeedGuide.net :: TCP Optimizer / Downloads
Edit by
Sry, this is not about Freelancer but other gaming servers. Freelancer uses the UDP protocol, not the TCP. Above mentioned is all about TCP tweaks