>Run code with FxCop.
>
>FxCop orders to add this security attribute since Msg is passed by Ref.
>
>Method can change Msg parameter directly and this is treated as unmanaged code.

Ah, but that's not the same as "requiring" it. I don't have FxCop, so I'll take your word for it that it recommends doing this, but I would guess that if you don't change the Msg parameter (and why would you?), then you probably don't have to worry about unmanaged code. Right?

~~Bonnie