Thank you for this, this was apparently fixed in .NET 4.0 which I was unaware of.

I think there is still some validity in my post in confusing whether you are using native accessing or routing through an additional tool/library, but the fix definitely elimates the performance hit I was discussing, so much of my post was in error.

edit: Also 3.5 it seems, I need to be more up-to-date with my concerns.