Here's the log from when I clean installed for the first time on this machine on March 16th:
FSUIPC6 Installer v1.2.6 for v6.0.13
Running in folder '\\10.0.42.2\stored\P3D'
Determining installation details...
FSUIPC5 SetupPath:
HKCU entry:
HKLM entry:
Returning Modules location:
Documents folder location for add-on: C:\Users\snorr\OneDrive\Dokumenter
P3Dv5: P3Dv5Installed=1, InstallType=None, OriginalInstallDir=, FSUIPCInstalledv5=,
DLLFile=, XmlAddonFile=, InstallDocumentsLocation=C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Default installation directory is now 'C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6'
Installing via add-on xml method
Documents folder location for P3Dv5 add-on: C:\Users\snorr\OneDrive\Dokumenter
Creating add-on directory C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6...
Create folder: C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6
Creating add-on xml file C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6\add-on.xml...
Saving add-on xml...
Add-on xml created for P3Dv5.
Output folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6
Extract: FSUIPC6.dll... 100%
Installing DLL with InstallType=AddOn
FSUIPC6 dll file installed in C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6.
XML-add-on installation was selected - no DLL.xml update needed.
FSUIPC6.dll installation completed.
Installing User Manuals...
Create folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Documents directory created: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: Installing and Registering FSUIPC.pdf... 100%
Extract: FSUIPC for Advanced Users.pdf... 100%
Extract: FSUIPC History.pdf... 100%
Extract: FSUIPC Offsets Status.pdf... 100%
Extract: FSUIPC User Guide.pdf... 100%
Extract: Profiles in Separate Files.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
FSUIPC6 User Manuals installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing Lua Documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: FSUIPC Lua Library.pdf... 100%
Extract: FSUIPC Lua Plug-Ins.pdf... 100%
Extract: Lua License.pdf... 100%
Extract: Lua Plugins for VRInsight Devices.pdf... 100%
Extract: LuaFileSystem.pdf... 100%
Extract: Example LUA plugins.zip... 100%
Output folder: \\10.0.42.2\stored\P3D
FSUIPC6 Lua Documents installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing PMDG Offset Mappings documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: Offset Mapping for PMDG 737NGX and 737NGXu.pdf... 100%
Extract: Offset Mapping for PMDG 747QOTSII.pdf... 100%
Extract: Offset Mapping for PMDG 777X.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
PMDG Offset Mapping documents installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing ASN WX Radar Facilities documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: ASN WX Radar facilities in FSUIPC.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
ASN WX Radar facilities documentation installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installation completed. Generating uninstaller...
Created uninstaller: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\uninstallFSUIPC6.exe
Updating registry for v5 installation...
As you can see on line 19, it creates the incorrect folder, even though the rest of the process uses the correct location.
I'll uninstall it and run the installer one more time just to get a second result:
FSUIPC6 Installer v1.2.6 for v6.0.13
Running in folder '\\10.0.42.2\stored\P3D'
Determining installation details...
FSUIPC5 SetupPath:
HKCU entry:
HKLM entry:
Returning Modules location:
Documents folder location for add-on: C:\Users\snorr\OneDrive\Dokumenter
P3Dv5: P3Dv5Installed=1, InstallType=None, OriginalInstallDir=, FSUIPCInstalledv5=,
DLLFile=, XmlAddonFile=, InstallDocumentsLocation=C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Default installation directory is now 'C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6'
Installing via add-on xml method
Documents folder location for P3Dv5 add-on: C:\Users\snorr\OneDrive\Dokumenter
Creating add-on directory C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6...
Create folder: C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6
Creating add-on xml file C:\Users\snorr\OneDrive\Dokumenter\Prepar3D v5 Add-ons\FSUIPC6\add-on.xml...
Saving add-on xml...
Add-on xml created for P3Dv5.
Output folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6
Extract: FSUIPC6.dll... 100%
Installing DLL with InstallType=AddOn
FSUIPC6 dll file installed in C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6.
XML-add-on installation was selected - no DLL.xml update needed.
FSUIPC6.dll installation completed.
Installing User Manuals...
Create folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Documents directory created: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: Installing and Registering FSUIPC.pdf... 100%
Extract: FSUIPC for Advanced Users.pdf... 100%
Extract: FSUIPC History.pdf... 100%
Extract: FSUIPC Offsets Status.pdf... 100%
Extract: FSUIPC User Guide.pdf... 100%
Extract: Profiles in Separate Files.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
FSUIPC6 User Manuals installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing Lua Documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: FSUIPC Lua Library.pdf... 100%
Extract: FSUIPC Lua Plug-Ins.pdf... 100%
Extract: Lua License.pdf... 100%
Extract: Lua Plugins for VRInsight Devices.pdf... 100%
Extract: LuaFileSystem.pdf... 100%
Extract: Example LUA plugins.zip... 100%
Output folder: \\10.0.42.2\stored\P3D
FSUIPC6 Lua Documents installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing PMDG Offset Mappings documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: Offset Mapping for PMDG 737NGX and 737NGXu.pdf... 100%
Extract: Offset Mapping for PMDG 747QOTSII.pdf... 100%
Extract: Offset Mapping for PMDG 777X.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
PMDG Offset Mapping documents installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing ASN WX Radar Facilities documentation...
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: ASN WX Radar facilities in FSUIPC.pdf... 100%
Output folder: \\10.0.42.2\stored\P3D
ASN WX Radar facilities documentation installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6.
Installing SDK...
Create folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\SDK
SDK folder created: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\SDK
Output folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\SDK
Extract: FSUIPC feedback control.txt... 100%
Extract: FSUIPC for Programmers.pdf... 100%
Extract: FSUIPC_User_Lib_for_VC_2010.zip
Extract: FSUIPCDotNetClient2.4.zip... 100%
Extract: Library for FS Internal Users.zip... 100%
Extract: Module_User_lib_for_VC_2010.zip... 100%
Extract: ModuleUser64.zip... 100%
Extract: New Weather Interface for FS2004.zip... 100%
Extract: NewWeather.h... 100%
Extract: ReadMe.txt... 100%
Extract: UIPC_RealBasic_SDK.zip... 100%
Extract: UIPC_SDK_ASM.zip... 100%
Extract: UIPC_SDK_BCB5.zip... 100%
Extract: UIPC_SDK_C.zip... 100%
Extract: UIPC_SDK_.NET_(C#,VB.NET).txt... 100%
Extract: UIPC_SDK_Delphi.zip... 100%
Extract: UIPC_SDK_JAVA.zip... 100%
Extract: UIPC_SDK_JAVA_64bit.zip... 100%
Extract: UIPC_SDK_MFC.zip... 100%
Extract: UIPC_SDK_Python.zip... 100%
Extract: UIPC_SDK_VisualBasic.zip... 100%
Extract: UIPC64_SDK_C_version2.zip... 100%
Extract: UIPCAWI.zip... 100%
Extract: FSUIPC_Java_SDK_by_Mouseviator_v1.1_with_C_Libs.zip... 100%
Installation of SDK completed.
Installing HidScanner...
Create folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Utilities folder created: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Output folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Extract: HidScanner.exe... 100%
HidScanner installed in C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Installing FS-Interrogate 2...
Output folder: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Extract: FSInterrogate2std.exe... 100%
Extract: FSUIPC.FSI... 100%
FS-Interrogate 2 installed in C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\Utils
Output folder: C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Extract: FSI2 Manual.pdf... 100%
FS-Interrogate 2 User'Manual installed in C:\Users\snorr\OneDrive\Dokumenter\FSUIPC6
Installation of FS-Interrogate 2 completed.
Installation completed. Generating uninstaller...
Created uninstaller: C:\Users\snorr\Documents\Prepar3D v5 Add-ons\FSUIPC6\uninstallFSUIPC6.exe
Updating registry for v5 installation...
And again on line 19, incorrect folder location. I hope this gives you something to work from.