I am now evaluating the possibility to upgrade to win11 from win10 and I 'm making a research about possible compatibility issues for some sim tools I currently use.

These are : ADE 1.79, AI Flow & AI Ground, AIFP3, AI-aircraft Editor, AITA2014, STBv5 (P3D), and SceneryConfigEditor v1.1.9.

Any issues reported with win11 ?

Thanks,

Sotiris

I have four of those and they’re fine with 11. No reason to suppose the rest won’t be fine.

Hi Ray,

Thanks for your response.

Tonight I realised that there are no stars in the night sky. Two-three months ago I rolled back from P3Dv5.4 to V5.3HF2 as you suggested the latter to be more stable with less stutters. I installed v5.3 client, content and scenery. It is the first time to notice that stars have disappeared. Any ideas how to bring stars back to the night sky ?

Sotiris, I rarely fly at night. You could ask on the LM P3D forum what file holds the stars.

@sotiris, asking Google the question reveals this…

In Prepar3D v5, the stars are displayed and controlled by the 

stars.dat file. 

Orbx +1

• Location: This file is typically located in the C:\ProgramData\Lockheed Martin\Prepar3D v5directory (or v4, depending on your installation path).
• Function: The stars.dat file contains data from the Bright Star Catalog, which the simulator uses to map the positions, brightness, and color of stars.
• Modifying: The stars can be adjusted or replaced using third-party tools like AutostarX to increase the number of visible stars or change their intensity.

I found that stars.dat file and it is where it meant to be, but no luck. I reinstalled the client, but this changed nothing.

I looked for that file in .cab files, but they are coded to unknown filetype.

Do you think I should reinstall content and scenery too ?

I installed AutostarX, replaced stars.dat, but did not do anything better. Something else should be the culprit.

21 minutes ago, sotiris said:

Do you think I should reinstall content and scenery too ?

I doubt it will fix it. Post the version and build number of your Windows 11 OS and see if others can confirm the issue.

Running win10 Pro 22H2 build 19045.6466, not wi11.

28 minutes ago, sotiris said:

Running win10 Pro 22H2 build 19045.6466, not wi11.

I believe support for 10 ended some time ago. You would be advised to upgrade to 11.

I don't really think it's an OS related issue. A setting option maybe ?

7 minutes ago, sotiris said:

I don't really think it's an OS related issue. A setting option maybe ?

Maybe roll back the last update and see if it fixes it. Other than that I’ve no idea.

Try the suggestion in the last post here.

https://prepar3d.com/forum/viewtopic.php?t=144284

First of all, many thanks for your help Ray.

Following the conversation we had, I see two options for myself :

1. Use EA (which I don't want) to see the stars during night flights, or,

2. Revert to v5.4, in which it appears that the issue had been fixed at the time of v5.4 release.

Many thanks again,

Sotiris.

 

P.S. Where does preferences.cfg reside ?

Edited March 13Mar 13 by sotiris

Hi Sotiris, given the last post on that forum was never followed up it’s likely it solved the problem. A corrupted file is the most likely reason.

Delete it in this folder but make no other changes. I’ll check my setup tomorrow.

The file is here.

C:\Users\YourUsername\AppData\Roaming\Lockheed Martin\Prepar3D v5