diff --git a/build/win32/vs10/gtk.vcxprojin b/build/win32/vs10/gtk.vcxprojin
index 2023301ce7..dedb30f93f 100644
--- a/build/win32/vs10/gtk.vcxprojin
+++ b/build/win32/vs10/gtk.vcxprojin
@@ -69,7 +69,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gtk;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_DEBUG;G_ENABLE_DEBUG;$(GtkDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
@@ -91,7 +91,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>$(GtkDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <PrecompiledHeader>
@@ -114,7 +114,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_DEBUG;G_ENABLE_DEBUG;$(GtkDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
@@ -136,7 +136,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>$(GtkDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <PrecompiledHeader>
diff --git a/build/win32/vs10/gtk3-demo.vcxproj b/build/win32/vs10/gtk3-demo.vcxproj
index 6693ba7fe3..91d6d1598e 100644
--- a/build/win32/vs10/gtk3-demo.vcxproj
+++ b/build/win32/vs10/gtk3-demo.vcxproj
@@ -202,6 +202,7 @@
     <ClCompile Include="..\..\..\demos\gtk-demo\textscroll.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\textview.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\toolpalette.c" />
+    <ClCompile Include="..\..\..\demos\gtk-demo\transparent.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\tree_store.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\ui_manager.c" />
   </ItemGroup>
diff --git a/build/win32/vs10/gtk3-demo.vcxproj.filters b/build/win32/vs10/gtk3-demo.vcxproj.filters
index c4210ac20f..2073ae5510 100644
--- a/build/win32/vs10/gtk3-demo.vcxproj.filters
+++ b/build/win32/vs10/gtk3-demo.vcxproj.filters
@@ -125,6 +125,9 @@
     <ClCompile Include="..\..\..\demos\gtk-demo\toolpalette.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\demos\gtk-demo\transparent.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\demos\gtk-demo\tree_store.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/build/win32/vs9/gtk.vcprojin b/build/win32/vs9/gtk.vcprojin
index e10878be15..8748bc3502 100644
--- a/build/win32/vs9/gtk.vcprojin
+++ b/build/win32/vs9/gtk.vcprojin
@@ -31,7 +31,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gtk"
+				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk"
 				PreprocessorDefinitions="_DEBUG;G_ENABLE_DEBUG;$(GtkDefines)"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -63,7 +63,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32"
+				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk"
 				PreprocessorDefinitions="$(GtkDefines)"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
@@ -96,7 +96,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32"
+				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk"
 				PreprocessorDefinitions="_DEBUG;G_ENABLE_DEBUG;$(GtkDefines)"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -128,7 +128,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32"
+				AdditionalIncludeDirectories="..\..\..\gdk;..\..\..\gdk\win32;..\..\..\gtk"
 				PreprocessorDefinitions="$(GtkDefines)"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
diff --git a/build/win32/vs9/gtk3-demo.vcproj b/build/win32/vs9/gtk3-demo.vcproj
index a40ed37105..581092c2b9 100644
--- a/build/win32/vs9/gtk3-demo.vcproj
+++ b/build/win32/vs9/gtk3-demo.vcproj
@@ -198,6 +198,7 @@
 			<File RelativePath="..\..\..\demos\gtk-demo\textscroll.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\textview.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\toolpalette.c" />
+			<File RelativePath="..\..\..\demos\gtk-demo\transparent.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\tree_store.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\ui_manager.c" />
 		</Filter>