Invoke can mean many things. What is the FUNCTIONALITY? What is the class or method that uses the data?

>Here is what is happening. The C++ application passes a string to .NET application. In our terminology it is an "invoke call". .NET application which is replacing our current VFP class library application does its work for the passed method call and returns result back as a string to C++ application.
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>The class I want to develop will serve as a holder for several important properties associated with each "invoke call". It may also have some extra functionality built in.
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>For now we're mostly concerned about status codes, error codes, error messages to be passed.