Look at your DLL.XML
Is this entry in it?
<Launch.Addon>
<Name>FSUIPC 4</Name>
<Disabled>False</Disabled>
<Path>Modules\FSUIPC4.dll</Path>
</Launch.Addon>
Martin
I have Problems in P3D v 2.5. Some effects doesn't work!
<img src="http://fsfiles.org/flightsimshotsv2/images/2015/02/27/2015-2-25_10-13-54-455.jpg" border="0">
Regards
Martin Streuter