Didn't see this reply. This is also a DEP crash (assuming the fault module path is psobb.exe). There are two options for DEP's settings. The one where you specify the exception should work, but it's probably a good idea to test with the other option just to verify that it is indeed a DEP crash.
Thank you for your response.

Yeah I compared the errors. I thaught it was a DEP too. However I tried both DEP settings and still not working. To make it sure, I redid everything.
Here is what I did.
1. In DEP settings : activate DEP for all programms and servieces exepted the selected ones. I selected PsoBB.exe.
Computer restart
Launch PSO.exe
Create a party and one spawed, wait 10 s and shoot with an handgun on the corner.
Game crashes
I have two errors
ERR1-1
Exception code: 0xc00001a5
Fault offset: 0x004d39da
Identifiant du processus défaillant : 0x5CBC
Heure de début de l'application défaillante : 0x1DCCE7CE631C510
Chemin de l'application défaillante : C:\Users\AA\EphineaPSO\PsoBB.exe
Chemin du module défaillant : C:\Users\AA\EphineaPSO\PsoBB.exe
ERR1-2
Exception code: 0xc0000005
Fault offset: 0x004d39bf
Identifiant du processus défaillant : 0x5CBC
Heure de début de l'application défaillante : 0x1DCCE7CE631C510
Chemin de l'application défaillante : C:\Users\AA\EphineaPSO\PsoBB.exe
Chemin du module défaillant : C:\Users\AA\EphineaPSO\PsoBB.exe
2. In DEP settings: select DEP for windows only.
Computer restart
Lauchn PSO.exe
Create a party and one spawed, wait 10 s and shoot with an handgun on the corner.
Game crashes
I also have two errors
ERR2-1
Exception code: 0xc00001a5
Fault offset: 0x004d39da
Identifiant du processus défaillant : 0x1A4
Heure de début de l'application défaillante : 0x1DCCE8216360E4F
Chemin de l'application défaillante : C:\Users\AA\EphineaPSO\PsoBB.exe
Chemin du module défaillant : C:\Users\AA\EphineaPSO\PsoBB.exe
ERR2-2
Exception code: 0xc0000005
Fault offset: 0x004d39bf
Identifiant du processus défaillant : 0x1A4
Heure de début de l'application défaillante : 0x1DCCE8216360E4F
Chemin de l'application défaillante : C:\Users\AA\EphineaPSO\PsoBB.exe
Chemin du module défaillant : C:\Users\AA\EphineaPSO\PsoBB.exe
Just in case here are my PC specs:
Processeur 11th Gen Intel(R) Core(TM) i7-11370H @ 3.30GHz (3.00 GHz)
Mémoire RAM installée 16,0 Go (15,7 Go utilisable)
Carte graphique Intel(R) Iris(R) Xe Graphics (128 Mo)
Stockage 418 GB sur 477 GB utilisé
Type du système Système d’exploitation 64 bits, processeur x64
Windows 11.
Aaaan my PC is in French
Croissant
Thank you for your help
Caadien