main executable funktioniert nicht

[waveout]

I've been playing MoW online on my Win7 32 System for about three weeks.
Since some days I am kicked out of onlinegames whith the errorreport:
"main executable funktioniert nicht" (german)
what means that this file can't be executed.

I tried to reinstall the Game including uptdates:

update_setup1.11.3.1(1)
update_setup1.17.5.0-en-fr-is-sp-1c-cut
update_setup1.17.5.1-en-fr-is-sp-1c-hotfix

- no effekt.

Someone told me he had a similar problem and solved it by deleting all saved games.
I tried that and in fact could play again for one day, but today the problem is there again.

After playing some Minutes I loose connection an the game collapse.

What can I do?