Pete, here is the short story... 
********* FSUIPC, Version 3.41 by Pete Dowson ********* 
Running inside FS2004 (FS9.1 CONTROLS.DLL, FS9.1 WEATHER.DLL) 
User Name="" 
User Addr="" 
FSUIPC not user registered 
WIDEFS not user registered, or expired 
Module base=61000000 
ClassOptions: UIPCMAIN=FF7F, FS98MAIN=FF7F, FS2KMAIN=FF5E 
WeatherOptions(Orig)=0000B027[0000B027] 
InitDelay: 0 seconds 
WeatherReadInterval=4 
LogOptions=00000001 
DebugStatus=0 
     3391 System time = 18:56:05 
     3391 C:\Program Files\Microsoft Games\Flight Simulator 9\ 
     3391 System time = 18:56:05, FS2004 time = 12:00:00 (00:00Z) 
     5391 FLIGHTS\OTHER\FLTSIM.flt 
     5500 AIRCRAFT\c172\Cessna172SP.air 
     6031 Aircraft="Cessna Skyhawk 172SP" 
    52016 C:\Documents and Settings\GMark\My Documents\Flight Simulator Files\UI generated flight.flt 
    53406 Clear All Weather requested: external weather discarded 
And just for the record, I have applied for the license to FSUIPC (well at least I spent my money but do not yet have confirmation... not sure what I would do with it... but I have taken advantage of the FSUIPC interface over the years and it's probably time to pay a few dues). 
GMark@KCVG