diff --git a/adm/cmake/occt_defs_flags.cmake b/adm/cmake/occt_defs_flags.cmake
index efcefe9662..aeda51c2ba 100644
--- a/adm/cmake/occt_defs_flags.cmake
+++ b/adm/cmake/occt_defs_flags.cmake
@@ -20,8 +20,7 @@ if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
 endif()
 
 if (WIN32)
-  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -wd4996")
-  set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -wd4996")
+  add_definitions (-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE)
 else()
   set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fexceptions -fPIC")
   set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -fexceptions -fPIC")
diff --git a/adm/templates/template.vc10 b/adm/templates/template.vc10
index f8a60a6fb4..6be03f7c33 100644
--- a/adm/templates/template.vc10
+++ b/adm/templates/template.vc10
@@ -85,7 +85,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -95,7 +95,7 @@
       <ProgramDataBaseFileName>.\..\..\..\win32\__VCVER__\obj\__TKNAM__/</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL32__
     </ClCompile>
     <ResourceCompile>
@@ -129,7 +129,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>Disabled</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>_DEBUG;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <AssemblerListingLocation>.\..\..\..\win32\__VCVER__\objd\__TKNAM__/</AssemblerListingLocation>
@@ -139,7 +139,7 @@
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL32__
     </ClCompile>
@@ -174,7 +174,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -184,7 +184,7 @@
       <ProgramDataBaseFileName>.\..\..\..\win64\__VCVER__\obj\__TKNAM__/</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL64__
     </ClCompile>
     <ResourceCompile>
@@ -218,7 +218,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>Disabled</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>_DEBUG;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <AssemblerListingLocation>.\..\..\..\win64\__VCVER__\objd\__TKNAM__/</AssemblerListingLocation>
@@ -228,7 +228,7 @@
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL64__
     </ClCompile>
diff --git a/adm/templates/template.vc10x b/adm/templates/template.vc10x
index fab58fff78..cdfd3669b2 100644
--- a/adm/templates/template.vc10x
+++ b/adm/templates/template.vc10x
@@ -85,7 +85,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -95,7 +95,7 @@
       <ProgramDataBaseFileName>.\..\..\..\win32\__VCVER__\obj\__XQTNAM__/</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL32__
     </ClCompile>
     <ResourceCompile>
@@ -128,7 +128,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>Disabled</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>_DEBUG;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <AssemblerListingLocation>.\..\..\..\win32\__VCVER__\objd\__XQTNAM__/</AssemblerListingLocation>
@@ -138,7 +138,7 @@
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL32__
     </ClCompile>
@@ -172,7 +172,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
@@ -182,7 +182,7 @@
       <ProgramDataBaseFileName>.\..\..\..\win64\__VCVER__\obj\__XQTNAM__/</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL64__
     </ClCompile>
     <ResourceCompile>
@@ -215,7 +215,7 @@
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <Optimization>Disabled</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>_DEBUG;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>Async</ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <AssemblerListingLocation>.\..\..\..\win64\__VCVER__\objd\__XQTNAM__/</AssemblerListingLocation>
@@ -225,7 +225,7 @@
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
-      <DisableSpecificWarnings>4996;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <DisableSpecificWarnings>%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <FloatingPointModel>Precise</FloatingPointModel>__VCMPL64__
     </ClCompile>
diff --git a/adm/templates/template.vc8 b/adm/templates/template.vc8
index 6d6897a9c9..13c0ae9a31 100644
--- a/adm/templates/template.vc8
+++ b/adm/templates/template.vc8
@@ -50,7 +50,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -62,7 +62,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win32\vc8\obj\__TKNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 				EnableEnhancedInstructionSet="2"
 			/>
 			<Tool
@@ -149,7 +148,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -163,7 +162,6 @@
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
 				CompileAs="0"
-				DisableSpecificWarnings="4996"
 				EnableEnhancedInstructionSet="2"
 			/>
 			<Tool
@@ -251,7 +249,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -263,7 +261,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win64\vc8\obj\__TKNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -350,7 +347,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -364,7 +361,6 @@
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
 				CompileAs="0"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/adm/templates/template.vc8x b/adm/templates/template.vc8x
index 910fa2f3e2..4d222d05f2 100644
--- a/adm/templates/template.vc8x
+++ b/adm/templates/template.vc8x
@@ -49,7 +49,7 @@
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__;"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -60,7 +60,6 @@
 				WarningLevel="4"
 				SuppressStartupBanner="true"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4996"
 				EnableEnhancedInstructionSet="2"
 			/>
 			<Tool
@@ -146,7 +145,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__;"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__;"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -157,7 +156,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win32\vc8\obj\__XQTNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 				EnableEnhancedInstructionSet="2"
 			/>
 			<Tool
@@ -242,7 +240,7 @@
 				AdditionalOptions="/favor:blend"
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -253,7 +251,6 @@
 				WarningLevel="4"
 				SuppressStartupBanner="true"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -340,7 +337,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -351,7 +348,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win64\vc8\obj\__XQTNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/adm/templates/template.vc9 b/adm/templates/template.vc9
index 3d1dd5d940..a0e1351179 100644
--- a/adm/templates/template.vc9
+++ b/adm/templates/template.vc9
@@ -52,7 +52,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -65,7 +65,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win32\vc9\obj\__TKNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -150,7 +149,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -165,7 +164,6 @@
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
 				CompileAs="0"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -248,7 +246,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -260,7 +258,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win64\vc9\obj\__TKNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -343,7 +340,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -357,7 +354,6 @@
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
 				CompileAs="0"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/adm/templates/template.vc9x b/adm/templates/template.vc9x
index b98be69059..d10f066384 100644
--- a/adm/templates/template.vc9x
+++ b/adm/templates/template.vc9x
@@ -52,7 +52,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -64,7 +64,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win32\vc9\obj\__XQTNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -144,7 +143,7 @@
 				AdditionalOptions="-MP"
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -156,7 +155,6 @@
 				WarningLevel="4"
 				SuppressStartupBanner="true"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -238,7 +236,7 @@
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="NDEBUG;No_Exception;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="NDEBUG;No_Exception;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				StringPooling="true"
 				ExceptionHandling="2"
 				RuntimeLibrary="2"
@@ -249,7 +247,6 @@
 				ProgramDataBaseFileName=".\..\..\..\win64\vc9\obj\__XQTNAM__/"
 				WarningLevel="4"
 				SuppressStartupBanner="true"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -330,7 +327,7 @@
 				AdditionalOptions="-MP -favor:blend"
 				AdditionalIncludeDirectories="__TKINC__;$(CSF_OPT_INC)"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;$(CSF_DEFINES)__TKDEFS__"
+				PreprocessorDefinitions="_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;$(CSF_DEFINES)__TKDEFS__"
 				ExceptionHandling="2"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -341,7 +338,6 @@
 				WarningLevel="4"
 				SuppressStartupBanner="true"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4996"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/src/OSD/OSD_Environment.cxx b/src/OSD/OSD_Environment.cxx
index fdc9638f20..b111f778de 100644
--- a/src/OSD/OSD_Environment.cxx
+++ b/src/OSD/OSD_Environment.cxx
@@ -323,7 +323,7 @@ void OSD_Environment :: Build () {
 
  str = myName + TEXT( "=" ) + myValue;
 
- putenv (  str.ToCString ()  );
+ _putenv (str.ToCString());
 
 }  // end OSD_Environment :: Build
 
@@ -333,7 +333,7 @@ void OSD_Environment :: Remove () {
 
  str = myName + TEXT( "=" );
 
- putenv (  str.ToCString ()  );
+ _putenv (str.ToCString());
 
 }  // end OSD_Environment :: Remove
 
diff --git a/src/OSD/OSD_Host.cxx b/src/OSD/OSD_Host.cxx
index fbba8342d4..60c88ee7af 100644
--- a/src/OSD/OSD_Host.cxx
+++ b/src/OSD/OSD_Host.cxx
@@ -216,6 +216,10 @@ OSD_Host :: OSD_Host () {
   ZeroMemory (&ms, sizeof(ms));
   ZeroMemory (  szHostName, sizeof ( Standard_Character ) *  (MAX_COMPUTERNAME_LENGTH + 1) );
 
+#ifdef _MSC_VER
+  // suppress GetVersionEx() deprecation warning
+  #pragma warning(disable : 4996)
+#endif
   if (  !GetVersionEx ( &osVerInfo )  ) {
 
    _osd_wnt_set_error ( myError, OSD_WHost );
@@ -230,6 +234,9 @@ OSD_Host :: OSD_Host () {
    GlobalMemoryStatus ( &ms );
 
   }  // end else
+#ifdef _MSC_VER
+  #pragma warning(default : 4996)
+#endif
 
   if (  !Failed ()  ) {
   
diff --git a/src/QANCollection/QANCollection_Stl.cxx b/src/QANCollection/QANCollection_Stl.cxx
index 9459e13d33..d467f1fb5f 100644
--- a/src/QANCollection/QANCollection_Stl.cxx
+++ b/src/QANCollection/QANCollection_Stl.cxx
@@ -13,6 +13,11 @@
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
+#if defined(_MSC_VER)
+  // supress "std::Equal1" warning suggesting using msvc "Checked Iterators"
+  #define _SCL_SECURE_NO_WARNINGS
+#endif
+
 #include <QANCollection.hxx>
 #include <Draw_Interpretor.hxx>
 
diff --git a/src/STEPConstruct/STEPConstruct_AP203Context.cxx b/src/STEPConstruct/STEPConstruct_AP203Context.cxx
index 666688945e..54e2ca9066 100644
--- a/src/STEPConstruct/STEPConstruct_AP203Context.cxx
+++ b/src/STEPConstruct/STEPConstruct_AP203Context.cxx
@@ -34,15 +34,7 @@
 #include <StepRepr_NextAssemblyUsageOccurrence.hxx>
 #include <StepShape_ShapeDefinitionRepresentation.hxx>
 
-#ifndef _WIN32
-# include <pwd.h>
-# include <netdb.h>
-#else
-# include <winsock2.h>
-#endif
-
-#include <stdio.h>
-
+#include <OSD_Host.hxx>
 #include <OSD_Process.hxx>
 #include <Quantity_Date.hxx>
 
@@ -68,6 +60,10 @@
 #include <StepAP203_HArray1OfApprovedItem.hxx>
 #include <StepBasic_ProductCategory.hxx>
 
+#ifndef _WIN32
+# include <pwd.h>
+#endif
+
 //=======================================================================
 //function : STEPConstruct_AP203Context
 //purpose  : 
@@ -164,25 +160,15 @@ Handle(StepBasic_PersonAndOrganization) STEPConstruct_AP203Context::DefaultPerso
 {
   if ( defPersonAndOrganization.IsNull() ) {
     // get IP address as a unique id of organization
-#ifdef _WIN32 // adapted for NT which lacks gethostent()
-    char hostname[1024];
-    hostname[0] = '\0';
-    gethostname ( hostname, 1020 );
-    hostname[1020] = '\0';
-    struct hostent *he = gethostbyname ( hostname );
-#else // adapted for Sun2.5, which lacks definition of gethostname()
-    struct hostent *he = gethostent();
-    while ( he && he->h_name && (unsigned char)he->h_addr_list[0][0] == 127 )
-      he = gethostent();
-#endif
-    Handle(TCollection_HAsciiString) orgId = new TCollection_HAsciiString ( "" );
-    if ( he && he->h_addr_list && he->h_length >0 ) {
-      char str[100];
-      unsigned i1 = (unsigned char)he->h_addr_list[0][0];
-      unsigned i2 = (unsigned char)he->h_addr_list[0][1];
-      unsigned i3 = (unsigned char)he->h_addr_list[0][2];
-      sprintf ( str, "IP%03u.%03u.%03u.000", i1, i2, i3 );
-      orgId->AssignCat ( str );
+    Handle(TCollection_HAsciiString) orgId = new TCollection_HAsciiString ( "IP" );
+    OSD_Host aHost;
+    TCollection_AsciiString anIP = aHost.InternetAddress();
+    // cut off last number
+    Standard_Integer aLastDotIndex = anIP.SearchFromEnd (".");
+    if (aLastDotIndex >0)
+    {
+      anIP.Trunc (aLastDotIndex - 1);
+      orgId->AssignCat (anIP.ToCString());
     }
     
     // create organization
diff --git a/src/TKSTEP/EXTERNLIB b/src/TKSTEP/EXTERNLIB
index 03d09ccd56..9423bb5afc 100755
--- a/src/TKSTEP/EXTERNLIB
+++ b/src/TKSTEP/EXTERNLIB
@@ -11,4 +11,3 @@ TKG3d
 TKGeomBase
 TKGeomAlgo
 TKXSBase
-CSF_wsock32