Hi all, hi Bignewy ,
could not solve the problem. I rebooted and started DCS again several times ( only possible from the path in explorer) , but always the same error.
I have no extra virusprogram.. only defender of WIN 11.
in short.. I formated the Partition of DCS and installed game from scratch. In spring I had many problems with the upgraded F 5 model - very low fps- and therefore I killed the installation.
Before the new installation of DCS I upgraded my PC
From Intel 7 8700 k and 32 GB RAM , nvidia 4090 to an AMD 5 6700 3 D and 64 GB RAM and of course new board.
Jump from 45 fps to 95 fps !! in a restored scenery (quality up to max now ) with the Phantom F 4 on Syriamap, which are both very demanding. I was very suprised.
In the end I am happy. I and my squadron ER * ... enjoy DCS.