private void AddProjectFolders(VBProject project, TreeNode root, TreeNode[] components)
        {
            var documentNodes = components.Where(node => node.ImageKey == "OfficeDocument")
                                          .OrderBy(node => node.Text)
                                          .ToArray();
            if (project.VBComponents.Cast<VBComponent>()
                       .Any(component => component.Type == vbext_ComponentType.vbext_ct_Document))
            {
                AddFolderNode(root, "Documents", "ClosedFolder", documentNodes);
            }

            var formsNodes = components.Where(node => node.ImageKey == "Form")
                                       .OrderBy(node => node.Text)
                                       .ToArray();
            if (project.VBComponents.Cast<VBComponent>()
                       .Any(component => component.Type == vbext_ComponentType.vbext_ct_MSForm))
            {
                AddFolderNode(root, "Forms", "ClosedFolder", formsNodes);
            }

            var stdModulesNodes = components.Where(node => node.ImageKey == "StandardModule")
                                            .OrderBy(node => node.Text)
                                            .ToArray();
            if (project.VBComponents.Cast<VBComponent>()
                       .Any(component => component.Type == vbext_ComponentType.vbext_ct_StdModule))
            {
                AddFolderNode(root, "Standard Modules", "ClosedFolder", stdModulesNodes);
            }

            var classModulesNodes = components.Where(node => node.ImageKey == "ClassModule")
                                              .OrderBy(node => node.Text)
                                              .ToArray();
            if (project.VBComponents.Cast<VBComponent>()
                       .Any(component => component.Type == vbext_ComponentType.vbext_ct_ClassModule
                                      || component.Type == vbext_ComponentType.vbext_ct_ActiveXDesigner))
            {
                AddFolderNode(root, "Class Modules", "ClosedFolder", classModulesNodes);
            }
        }