Thanks Norm, I read it yesterday, not certain it would Apply to RTMM. And , I found a full description on how to adapt the registry to accept addons.
NB, working with the registry is not without risks, so following exact instructions is mandatory
This "registry trick" is for installing (un-updated) addons into Prepar3D v6. In theory, this can be used for any version of Prepar3D, but I'm gonna be focused on Prepar3D v6, and tricking addons into thinking that Prepar3D v5 is installed. Now, this isn't foolproof and some addons doesn't seem to work despite of this. Maybe other things needs to be done, to make this work. This guide also takes into account, that you haven't any previous versions of Prepar3D installed! Please note, that if you have Prepar3D v5 installed and are making this registry change, problems may arise, so please be cautious! Also, backup your registry, before editing/changing this. There's no undo-button! 🙂
Alright - here goes:
Open Notepad.exe up, and paste the following into it:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\SOFTWARE\Lockheed Martin]
[HKEY_CURRENT_USER\SOFTWARE\Lockheed Martin\Prepar3D v5]
"Installed"=dword:00000001
"AppPath"="<INSERT-PATH-TO-PREPAR3Dv6-HERE>"
Save the file as P3D-HKEY-USER-Registry.reg
Open Notepad.exe again and paste the following into it:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Lockheed Martin]
[HKEY_LOCAL_MACHINE\SOFTWARE\Lockheed Martin\Prepar3D v5]
"License"="<INSERT-LICENSE-HERE>" (License can be Academic/Professional/ProfessionalPlus)
"SetupPath"="<INSERT-PATH-FOR-PREPAR3DV6-HERE>"
Save the file as P3D-HKEY-LOCALMACHINE.reg
Close Notepad.
Run the two registry-files by double-clicking on each of them (follow the instructions which appears).
Please be aware when changing registry-entries! Always backup your registry, beforehand. In theory you could use Prepar3D v4 instead, if you don't wanna mess your existing Prepar3D v5 up. I wouldn't advice to go below Prepar3D v4, due to architecture changes.
Sherm