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Unless every trace of FSX is eliminated from the Windows Registry,

or it is being installed on a freshly installed operating system,

FSX Steam will install in "Co-existence" mode

This means that it will create external folders named FSX-SE rather than

FSX.

 

In this case, although the FTX software may install correctly, neither the

installer nor FTX Central will be able to locate the scenery.cfg file.

If you encounter this error message, the following is a fix which will work

whether there are traces of FSX remaining or not.

----------------------------------------------------------------------------------------------------------------------------

If you have already installed any products or scenery, before you start,

back up the contents of your 

C:\ProgramData\Microsoft\FSX-SE and

C:\Users\Your name\AppData\Roaming\Microsoft\FSX-SE

folders to another location.

 

Once the fix is applied, the back ups can be copied into the new

C:\ProgramData\Microsoft\FSX and

C:\Users\Your name\AppData\Roaming\Microsoft\FSX

folders that will be created the next time that FSX Steam is run.

----------------------------------------------------------------------------------------------------------------------------

The registry editor is not complex but must be used with care.

It is highly unlikely that problems will be encountered with this simple edit.

To open the Registry Editor, select Search from your Windows menu and type in

regedit which will find regedit.exe. Click on this to run the Registry Editor.

 

Navigate to

HKEY_CURRENT_USER\Software\Microsoft\Microsoft Games\Flight Simulator - Steam Edition

where you will see a Registry Key named Co-existence.

You will see that its value is 1.

Right click on the Co-existence key and select Modify... and change the value to 0 (zero).

Close the Registry Editor.

 

You can then go to

C:\ProgramData\Microsoft\

C:\Users\Your name\AppData\Roaming\Microsoft\

C:\Users\Your name\AppData\Local\Microsoft\

and in each case delete the FSX-SE folder.

If you see an FSX folder, delete that also.

 

Then restart FSX-SE and new folders named FSX will be created.

Once you have done this, the file structure will match what

the installers and FTX Central expect to find for FSX and they will

work correctly.

 

EDIT: Now that there are product installers for FSX and FSX-SE,

if you apply this fix and have only FSX-SE on your PC, you MUST

use the FSX installer, not the FSX_SE option.

 

 

Credit for the registry fix to Steve Waite at the Avsim forum.

I have tried it and it works for me exactly as I have written.

As I have both versions on my PC, I have also found that

the process is entirely reversible.

 

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  • Nick Cooper changed the title to Installing FSX-SE on its own
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