Pete, 
 
I don't konw why, but the problem is here !! The only common thing is : All FS2004 version are French Version. 
Note : This is my own log (You can find my user name and user address) 
Even if I'm an registred user, Why with FSUIPC 3.06 my BOITE NOIRE program run, and with the same registred user FSUIPC 3.07 cry to me "Program not accredited for use with this unregistered FSUIPC" ?? 
Please, read the FSUIPC's log I paste here : 
-------WITH FSUIPC 3.06 INSTALLED ------------- 
********* FSUIPC, Version 3.06 by Pete Dowson ********* 
User Name="Fabrice Erdinger" 
User Addr="brice@cyberavia.org" 
FSUIPC Key is provided 
WIDEFS not user registered, or expired 
Module base=09D70000 
ClassOptions: UIPCMAIN=FF7F, FS98MAIN=FF7F, FS2KMAIN=FF5E 
WeatherOptions(Orig)=409C370D[409C370D] 
InitDelay: 3 seconds 
     2814 System time = 20:00:36 
Internal Debug Code 15 
     2814 D:\FS2004\ 
     6650 C:\Documents and Settings\Bruno\Mes documents\Fichiers Flight Simulator\reprise.flt 
     6790 AIRCRAFT\Opensky_767 400ER-White Paint Kit\767-400-GE-CF6-80C2B7F.air 
     9694 System time = 20:00:43, FS2004 time = 12:00:00 (12:00Z) 
    17445 C:\Documents and Settings\Bruno\Mes documents\Fichiers Flight Simulator\cybervol.flt 
    17575 AIRCRAFT\lear45\Lear45.air 
    18997 Clear All Weather requested: external weather discarded 
    20259 Advanced Weather Interface Enabled 
    85513 WeatherOptions set, now 409C370D (timer=0) 
   285300 Client Application: "bn_vr" (Id=2768) 
   285300 C:\Cip\bn_vr.exe 
   285300    Description="Boite Noire VR CyberAvia" 
   285300    Company="CyberAvia" 
   300983 Weather cleared automatically for FS98 changes 
   356393 System time = 20:06:30, FS2004 time = 10:37:00 (09:37Z) 
   356393 *** FSUIPC log file being closed 
Memory managed: 9 Allocs, 4045 Freed 
********* FSUIPC Log file closed **** 
-------WITH FSUIPC 3.07 INSTALLED ------------- 
********* FSUIPC, Version 3.07 by Pete Dowson ********* 
User Name="Fabrice Erdinger" 
User Addr="brice@cyberavia.org" 
FSUIPC Key is provided 
WIDEFS not user registered, or expired 
Module base=09D70000 
ClassOptions: UIPCMAIN=FF7F, FS98MAIN=FF7F, FS2KMAIN=FF5E 
WeatherOptions(Orig)=409C370D[409C370D] 
InitDelay: 0 seconds 
     2714 System time = 18:49:41 
Internal Debug Code 15 
     2734 D:\FS2004\ 
     2734 System time = 18:49:41, FS2004 time = 12:00:00 (00:00Z) 
     5728 C:\Documents and Settings\Bruno\Mes documents\Fichiers Flight Simulator\reprise.flt 
     5838 AIRCRAFT\Opensky_767 400ER-White Paint Kit\767-400-GE-CF6-80C2B7F.air 
     7250 Clear All Weather requested: external weather discarded 
    15272 C:\Documents and Settings\Bruno\Mes documents\Fichiers Flight Simulator\cybervol.flt 
    15392 AIRCRAFT\lear45\Lear45.air 
    16553 Clear All Weather requested: external weather discarded 
    17976 Advanced Weather Interface Enabled 
   870842 WeatherOptions set, now C09C370D (timer=0) 
   916968 Client Application: "bn_vr" (Id=888) 
   916968 C:\Cip\bn_vr.exe 
   916968    Description="Boite Noire VR CyberAvia" 
   916968    Company="CyberAvia" 
   916968     Illegal read attempt: offset 320C, size 4 
   916968Program not accredited for use with this unregistered FSUIPC 
  1159086 ### IPC Message processed in 242118mSecs ### 
I think they are a problem no ?? 
 
My program is big !! Not EXEC file, but DLL need tio work. 
If you want, I can send you URL where you can download it. 
Thank,