ok thank you I think I ve found it
the file was located in documents add ons
despite the fact I ve entered my credentials from sim market during the registration and installation process, the file indicates that the version has not been registered
********* FSUIPC6, Version 6.1.1 (9th May 2021) by Pete & John Dowson *********
Prepar3D.exe version = 5.1.12.26829
Running inside Prepar3D v5
Module base=7FF898090000
Windows 10 Home 64 Bit reported as Build 19042, Release ID: 2009 (OS 10.0)
Reading options from "C:\Users\ALIENWARE\Documents\Prepar3D v5 Add-ons\FSUIPC6\FSUIPC6.ini"
Checking the Registrations now ...
User Name=""
User Addr=""
FSUIPC6 not user registered
WIDEFS7 not user registered, or expired
0 System time = 13/05/2021 20:34:26
0 FLT path = "C:\Users\ALIENWARE\Documents\Prepar3D v5 Files\"
0 Using DialogMode
16 FS path = "D:\Program Files\P3D\"
110 Controllers are set to ON, using DirectInput within P3D
110 LogOptions=F0000000 00000005
110 -------------------------------------------------------------------