The function used for the analysis.
[Visual Basic 6.0] Property Solver As INASolver
[Visual Basic .NET] Public ReadOnly Property Solver As INASolver
[C#] public INASolver Solver {get;}
[Java] public INASolver getSolver() throws IOException, AutomationException
[C++] HRESULT get_Solver( INASolver** Solver );
Solver returns an object that implements INASolver. This is generally the solver that created the NAContext.