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I have two versions of P3D installed.

For V3.4, FSUIPC installed, working properly. (FSUIPC v9.7.1)

For V4.1, FSUIPC installed, show as a pull down with P3Dm v4.1 running but will not register. (FSUIPC v5.1.2.2)

Thanx in advance for your help. This ia a new PC, running WIN10, which I dislike.


Don't know what you might need but included the install file & the DDL.xml file in case it helps.

FSUIPC install log

Installer for FSUIPC5.DLL version 5.122

Looking in registry for Prepar3D v4 install path:
     HKEY_CURRENT_USER\SOFTWARE\Lockheed Martin\Prepar3D v4
... >>>  OK! FOUND Prepar3D v4!  <<< ...
     AppPath=H:\Prepar3D v4\

AppPath="H:\Prepar3D v4\"
Checking version of the Prepar3D v4 EXE:
... Version  (Need at least
Checking if there's already a version of FSUIPC5 installed as:
       H:\Prepar3D v4\Modules\FSUIPC5.DLL
... No previous valid version found.
Prepar3D v4 Modules Modules folder already exists.
Okay -- installed FSUIPC5 into "H:\Prepar3D v4\Modules\FSUIPC5.DLL"
Looking for the current user's Application Data path:
... found as "C:\Users\pstlp\AppData\Roaming"
Now finding \Lockheed Martin\Prepar3D v4\Prepar3D.CFG for all users, including this one
Looking in "C:\Users\All Users\AppData\Roaming"
 ... No Prepar3D.CFG there
Looking in "C:\Users\Default\AppData\Roaming"
 ... No Prepar3D.CFG there
Looking in "C:\Users\Default User\AppData\Roaming"
 ... No Prepar3D.CFG there
Looking in "C:\Users\pstlp\AppData\Roaming"
Found Prepar3D.CFG in "C:\Users\pstlp\AppData\Roaming\Lockheed Martin\Prepar3D v4\Prepar3D.CFG"
Now checking DLL.XML ...
... There is a previous DLL.XML, checking for FSUIPC5 section.
... FSUIPC5 section already exists but will be replaced.
... FSUIPC5 section of DLL.XML written okay
Now checking for a SimConnect.XML file ...
... No SimConnect.XML file found. This is okay.
Looking in "C:\Users\Public\AppData\Roaming"
 ... No Prepar3D.CFG there
"Modules\FSUIPC Documents" folder created okay!
Now installing additional files into the "Modules\FSUIPC Documents" folder:
   Installed "FSUIPC5 User Guide.pdf" okay
   Installed "FSUIPC5 for Advanced Users.pdf" okay
   Installed "The 2016 List of FSX and P3D Controls.pdf" okay
   Installed "FSUIPC Lua Library.pdf" okay
   Installed "FSUIPC Lua Plug-Ins.pdf" okay
   Installed "Lua License.pdf" okay
   Installed "LuaFileSystem.pdf" okay
   Installed "Example LUA plugins.zip" okay
   Installed "FSUIPC4 Offsets Status.pdf" okay
   Installed "Profiles in Separate Files.pdf" okay
   Installed "FSUIPC5 History.pdf" okay
   Installed "Lua Plugins for VRInsight Devices.pdf" okay
   Installed "ASN WX Radar facilities in FSUIPC4.pdf" okay
   Installed "Offset Mapping for PMDG 737NGX.pdf" okay
   Installed "Offset Mapping for PMDG 777X.pdf" okay
   Installed "Offset Mapping for PMDG 747QOTSII.pdf" okay

All installer tasks completed.
Registration dialog 'not now' selected
*************** End of Install Log ***************



<?xml version="1.0" encoding="Windows-1252"?>

<SimBase.Document Type="Launch" version="1,0">
    <Name>FSUIPC 5</Name>
    <Path>H:\Prepar3D v4\Modules\FSUIPC5.dll</Path>

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5 hours ago, Pstlpete said:

For V4.1, FSUIPC installed, show as a pull down with P3Dm v4.1 running but will not register.

What exactly do you mean by "will not register"? Have you purchased an FSUIPC5 registration? It won't accept an FSUIPC4 one.

And anyway the Install log shows you declined to register:

5 hours ago, Pstlpete said:

Registration dialog 'not now' selected

BTW your FSUIPC4 is out of date. The current version is 4.972


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