Probably did you mean smth like this?
It's work but i need to rewrite all my tests and it's not a global handling. I can also use try{} catch{} in main test but it's not solving my problem.
I'm searching in google but found only Application.ThreadException event wich available only for WebForms.
AppDomain.CurrentDomain.UnhandledException as i wrote above handle only Gallio(MbUnit) exceptions.