Hi Vampire.

Did you try the following suggestions from my reply above?

Here they are again:

Install Weapon for FSX as an administrator, by right clicking the csw001_1000.exe and selecting "Run as administrator" from the list.
Make sure you run the "Loader" (Start > Captain Sim > Weapon for FSX > Loader) as an administrator as well.
Try running FSX as an administrator as well (Start > Games > Microsoft Flight Simulator X).

Either or all of these could make it work correctly.