diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0b3e008..e9a9ee48 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@
 # cmake 3.12 have more better modern c++ support
 
 cmake_minimum_required(VERSION 3.12  FATAL_ERROR)
-project(nana VERSION      1.7.2
+project(nana VERSION      1.7.3
         DESCRIPTION "C++ GUI library"
         HOMEPAGE_URL http://nanapro.org
         LANGUAGES CXX         )
diff --git a/include/nana/gui/widgets/treebox.hpp b/include/nana/gui/widgets/treebox.hpp
index d6d67cc8..eaae22e5 100644
--- a/include/nana/gui/widgets/treebox.hpp
+++ b/include/nana/gui/widgets/treebox.hpp
@@ -492,6 +492,14 @@ namespace nana
 
 		/// Gets the current hovered node.
 		item_proxy hovered(bool exclude_expander) const;
+
+
+		/// Enable/disable the interactions (selection, click, ...) on the entire line of the treebox.
+		/**
+		 * @param enable bool  whether to enable.
+		 */
+		void use_entire_line(bool enable);
+
 	private:
 		std::shared_ptr<scroll_operation_interface> _m_scroll_operation() override;
 
diff --git a/source/filesystem/filesystem.cpp b/source/filesystem/filesystem.cpp
index 19128e2a..bebc7c8a 100644
--- a/source/filesystem/filesystem.cpp
+++ b/source/filesystem/filesystem.cpp
@@ -1386,7 +1386,7 @@ namespace std
 {
 	namespace filesystem
 	{
-#if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703))
+#if defined(_MSC_VER) && ((_MSC_VER < 1900) || ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703)))
 
 		path absolute(const path& p)
 		{
diff --git a/source/gui/widgets/menu.cpp b/source/gui/widgets/menu.cpp
index 078844aa..b8454e67 100644
--- a/source/gui/widgets/menu.cpp
+++ b/source/gui/widgets/menu.cpp
@@ -922,7 +922,25 @@ namespace nana
 					}
 					else if (checks::option == item.style)
 					{
-						get_drawer_trigger().mbuilder().checked(active, true);
+						if(active > 0)
+						{
+							do {
+								if(menu->items[--active]->flags.splitter)
+								{
+									++active;
+									break;
+								}
+							} while(active > 0);
+						}
+						while(active < menu->items.size())
+						{
+							menu_item_type &el = *(menu->items[active++]);
+							if(el.flags.splitter)
+								break;
+							if(checks::option == el.style)
+								el.flags.checked = false;
+						}
+						item.flags.checked = true;
 					}
 
 					this->_m_close_all();	//means deleting this;
diff --git a/source/gui/widgets/treebox.cpp b/source/gui/widgets/treebox.cpp
index 7e056b1d..0a114471 100644
--- a/source/gui/widgets/treebox.cpp
+++ b/source/gui/widgets/treebox.cpp
@@ -295,7 +295,12 @@ namespace nana
 						if (impl_->data.comp_placer->locate(comp, node_attr_, &attr.area))
 						{
 							attr.mouse_pointed = node_attr_.mouse_pointed;
-							attr.area.x += pos_.x;
+
+							if(comp == component_t::bground && impl_->use_entire_line)
+								attr.area.width = impl_->visible_w_pixels();
+							else
+								attr.area.x += pos_.x;
+
 							attr.area.y += pos_.y;
 							return true;
 						}
@@ -362,6 +367,9 @@ namespace nana
 					std::size_t scroll_timestamp;
 					nana::timer timer;
 				}adjust;
+
+				bool use_entire_line;
+
 			public:
 				implementation()
 				{
@@ -386,6 +394,8 @@ namespace nana
 					adjust.offset_x_adjust = 0;
 					adjust.node = nullptr;
 					adjust.scroll_timestamp = 0;
+
+					use_entire_line = false;
 				}
 
 				void assign_node_attr(node_attribute& ndattr, const node_type* node) const
@@ -1675,8 +1685,8 @@ namespace nana
 							nana::rectangle r = node_r;
 							if (!comp_placer->locate(static_cast<component>(comp), node_attr_, &r))
 								continue;
-							
-							if (r.is_hit(logic_pos))
+
+							if((comp == static_cast<int>(component::bground) && impl_->use_entire_line) || r.is_hit(logic_pos))
 							{
 								node_ = &node;
 								what_ = static_cast<component>(comp);
@@ -2023,6 +2033,7 @@ namespace nana
 					{
 					case component::icon:
 					case component::text:
+					case component::bground:
 						impl_->set_expanded(node, !node->value.second.expanded);
 						impl_->draw(true, true, false);
 						API::dev::lazy_refresh();
@@ -2448,6 +2459,12 @@ namespace nana
 			return item_proxy(const_cast<drawer_trigger_t*>(dw), dw->impl()->node_state.pointed);
 		}
 
+		void treebox::use_entire_line(bool enable)
+		{
+			auto dw = &get_drawer_trigger();
+			dw->impl()->use_entire_line = enable;
+		}
+
 		std::shared_ptr<scroll_operation_interface> treebox::_m_scroll_operation()
 		{
 			internal_scope_guard lock;