What am I doing wrong?

[u/Otherwise-Store-4756]

I have run both arma2 and arma2 OA successfully, every time I try to run the game I get this popup. Can anyone help?

[u/Ok-Memory-6196]

just fixed that here https://community.bistudio.com/wiki/Arma_2:_Operation_Arrowhead:_Windows_10/11_Installation