I am working in VS2005 (.Net 2.0).

I have a unmanaged C++ class that will be used by C#, once I get to
that point.  I would like to throw a System::ApplicationException from
the unmanaged code, is there any problems with this?

I am formating a string in one of these throws where I am using
String::Format and one of the values is a unmanaged enum (ie int).
How do I go about boxing it to use it in the String::Format call?
When I try to use __box(result), I get an error C4980: '__box' : use
of this keyword requires /clr:oldSyntax.  Thus I have a feeling there
is a new way of doing it.

Cartoper