diff --git a/samples/dll/dll_vc7.sln b/samples/dll/dll_vc7.sln
deleted file mode 100644
index 6e061a8f3a..0000000000
--- a/samples/dll/dll_vc7.sln
+++ /dev/null
@@ -1,54 +0,0 @@
-Microsoft Visual Studio Solution File, Format Version 8.00
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "my_dll", "dll_vc7_my_dll.vcproj", "{E447221A-E421-5BC3-B3AE-038214A80E45}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wx_exe", "dll_vc7_wx_exe.vcproj", "{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}"
-	ProjectSection(ProjectDependencies) = postProject
-		{E447221A-E421-5BC3-B3AE-038214A80E45} = {E447221A-E421-5BC3-B3AE-038214A80E45}
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-		Universal Debug|Win32 = Universal Debug|Win32
-		Universal Release|Win32 = Universal Release|Win32
-		DLL Debug|Win32 = DLL Debug|Win32
-		DLL Release|Win32 = DLL Release|Win32
-		DLL Universal Debug|Win32 = DLL Universal Debug|Win32
-		DLL Universal Release|Win32 = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Debug|Win32.ActiveCfg = Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Debug|Win32.Build.0 = Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Release|Win32.ActiveCfg = Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Release|Win32.Build.0 = Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Debug|Win32.Build.0 = DLL Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Release|Win32.Build.0 = DLL Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Universal Debug|Win32.Build.0 = DLL Universal Debug|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-		{E447221A-E421-5BC3-B3AE-038214A80E45}.DLL Universal Release|Win32.Build.0 = DLL Universal Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Debug|Win32.ActiveCfg = Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Debug|Win32.Build.0 = Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Release|Win32.ActiveCfg = Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Release|Win32.Build.0 = Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{9ACA31E9-1D0F-5394-AE4F-57A0D961940B}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
-
diff --git a/samples/dll/dll_vc8.sln b/samples/dll/dll_vc8.sln
deleted file mode 100644
index d14d6465be..0000000000
--- a/samples/dll/dll_vc8.sln
+++ /dev/null
@@ -1,55 +0,0 @@
-Microsoft Visual Studio Solution File, Format Version 9.00
-# Visual Studio 2005
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "my_dll", "dll_vc8_my_dll.vcproj", "{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wx_exe", "dll_vc8_wx_exe.vcproj", "{3333FB9B-9F78-5B69-883E-EBACD05283E1}"
-	ProjectSection(ProjectDependencies) = postProject
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C} = {0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-		Universal Debug|Win32 = Universal Debug|Win32
-		Universal Release|Win32 = Universal Release|Win32
-		DLL Debug|Win32 = DLL Debug|Win32
-		DLL Release|Win32 = DLL Release|Win32
-		DLL Universal Debug|Win32 = DLL Universal Debug|Win32
-		DLL Universal Release|Win32 = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Debug|Win32.Build.0 = Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Release|Win32.ActiveCfg = Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Release|Win32.Build.0 = Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Debug|Win32.Build.0 = DLL Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Release|Win32.Build.0 = DLL Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Universal Debug|Win32.Build.0 = DLL Universal Debug|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-		{0D9BB5C5-B6BC-5B09-B5EE-A9460F5B505C}.DLL Universal Release|Win32.Build.0 = DLL Universal Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Debug|Win32.ActiveCfg = Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Debug|Win32.Build.0 = Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Release|Win32.ActiveCfg = Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Release|Win32.Build.0 = Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{3333FB9B-9F78-5B69-883E-EBACD05283E1}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
-
diff --git a/samples/dll/dll_vc9.sln b/samples/dll/dll_vc9.sln
deleted file mode 100644
index 9e7dfccd02..0000000000
--- a/samples/dll/dll_vc9.sln
+++ /dev/null
@@ -1,55 +0,0 @@
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual Studio 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "my_dll", "dll_vc9_my_dll.vcproj", "{546E5D91-8631-5380-BF07-6CC3AAF357B3}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wx_exe", "dll_vc9_wx_exe.vcproj", "{20A32CF5-BEBF-5B60-A106-F670A2CDF989}"
-	ProjectSection(ProjectDependencies) = postProject
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3} = {546E5D91-8631-5380-BF07-6CC3AAF357B3}
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-		Universal Debug|Win32 = Universal Debug|Win32
-		Universal Release|Win32 = Universal Release|Win32
-		DLL Debug|Win32 = DLL Debug|Win32
-		DLL Release|Win32 = DLL Release|Win32
-		DLL Universal Debug|Win32 = DLL Universal Debug|Win32
-		DLL Universal Release|Win32 = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Debug|Win32.ActiveCfg = Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Debug|Win32.Build.0 = Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Release|Win32.ActiveCfg = Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Release|Win32.Build.0 = Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Debug|Win32.Build.0 = DLL Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Release|Win32.Build.0 = DLL Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Universal Debug|Win32.Build.0 = DLL Universal Debug|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-		{546E5D91-8631-5380-BF07-6CC3AAF357B3}.DLL Universal Release|Win32.Build.0 = DLL Universal Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Debug|Win32.ActiveCfg = Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Debug|Win32.Build.0 = Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Release|Win32.ActiveCfg = Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Release|Win32.Build.0 = Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Universal Debug|Win32.ActiveCfg = Universal Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Universal Debug|Win32.Build.0 = Universal Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Universal Release|Win32.ActiveCfg = Universal Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.Universal Release|Win32.Build.0 = Universal Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.DLL Debug|Win32.ActiveCfg = DLL Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.DLL Release|Win32.ActiveCfg = DLL Release|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.DLL Universal Debug|Win32.ActiveCfg = DLL Universal Debug|Win32
-		{20A32CF5-BEBF-5B60-A106-F670A2CDF989}.DLL Universal Release|Win32.ActiveCfg = DLL Universal Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
-