MSINET.OCX...

Not that I'm entirely sure on this subject, but I DO know that the mod itself has an MSINET.ocx included and stands for Microsoft Internet Transfer Control, according to what I've found, it's a VB ( Visual Basic ) component.

Reading up on this I found that it's supposedly in the system32 folder but is not shipped with XP. However, Media Center Edition is not an OS I'm familiar with. You could try updating VB6 from M$ or DL the newer version od MSINET.OCX version 6.00.8862 from; http://www.afreeocx.com/ocx/info/msinet_ocx.html
or version 6.01.9782 from; http://www.ocxdump.com/downloa…X/6.01.9782/download.html Into the system32 folder. Using Run type in c:\regsvr32.exe msinet.ocx and hopefully fix the problem.

This is the only advice I can offer.

please check if u followed "Installation Instructions" in the CF Guide

also check that section "The Crossfire Launcher" in that guide.

u could try to open a command window:
"regsvr32 c:/Program Files/Microsoft Games/Freelancer/Exe/MSInet.ocx" (adjust to ur Freelancer path)