Even though I am still using FS2002, to be fair to you I've tried the latest version (3.07) as you support this one and not the 2.x :D
Anyhow... here is the problem. I was getting some unexplained crashes with some 3rd party aircraft so I decided to do a reinstall of FS2002 to a new folder .../FS2002_2 everything went well, until I copied over FSUIPC to the new directory.
It would crash and give me an error...
FSUIPC provides this log...
********* FSUIPC, Version 3.07 by Pete Dowson *********
User Name=""
User Addr=""
FSUIPC not user registered
WIDEFS not user registered, or expired
Module base=01B70000
ClassOptions: UIPCMAIN=FF7F, FS98MAIN=FF7F, FS2KMAIN=FF5E
WeatherOptions(Orig)=0000B027[0000B027]
InitDelay: 3 seconds
1923 System time = 16:04:43
Internal Debug Code 0
1933 E:\Program Files\Microsoft Games\FS2002_2\
3976 FLIGHTS\OTHER\FLTSIM.flt
4056 AIRCRAFT\c172\Cessna172SP.air
If I remove FSUIPC.dll from the folder, FS loads fine. Any idea what might have gone wrong here? Thanks in advance!