triple7300

Ever since I installed v.3.99 I cant get the PMDG 747 to work, I cannot get any outside applications to connect with FS9. For example, whenever I chose the PMDG 747 to fly with, it says" Your version of FSUIPC is too old...Flight Sim will now close". Also I fly with Virtual British Airways and I log flight hours using an external program however it will not detect that FS9 is open or that I even have FSUIPC. I have done the following things already: -I have installed using full admin settings and disabled UAC -I have deleted my fs9.cfg and let it rebuild a new one -defragged and cleaned up my hard disk Any thoughts? Thank you for your time