/// <summary>
/// Does a File Save As for the currently active project.
/// </summary>
public void SaveMPP()
{
_projectApp.FileSaveAs(SaveProjectFilePath, PjFileFormat.pjMPP, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
}