diff --git a/ChangeLog b/ChangeLog
index 01b42254ef..9702af2076 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,10 +5,18 @@ mbed TLS ChangeLog (Sorted per branch, date)
 Bugfix
    * Fix to allow building test suites with any warning that detects unused
      functions. Fixes #1628.
+   * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
+   * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
+   * Fix Visual Studio Release x64 build configuration by inheriting
+     PlatformToolset from the project configuration. Fixes #1430 reported by
+     irwir.
+   * Enable Suite B with subset of ECP curves. Make sure the code compiles even
+     if some curves are not defined. Fixes #1591 reported by dbedev.
 
 Changes
    * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
      suggests). #2671
+   * Make `make clean` clean all programs always. Fixes #1862.
 
 = mbed TLS 2.16.2 branch released 2019-06-11
 
diff --git a/library/net_sockets.c b/library/net_sockets.c
index 816b1303df..5d538bfd56 100644
--- a/library/net_sockets.c
+++ b/library/net_sockets.c
@@ -284,7 +284,7 @@ static int net_would_block( const mbedtls_net_context *ctx )
     int err = errno;
 
     /*
-     * Never return 'WOULD BLOCK' on a non-blocking socket
+     * Never return 'WOULD BLOCK' on a blocking socket
      */
     if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )
     {
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8710a50769..b8f35fec5d 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -9043,8 +9043,12 @@ static int ssl_preset_suiteb_hashes[] = {
 
 #if defined(MBEDTLS_ECP_C)
 static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = {
+#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
     MBEDTLS_ECP_DP_SECP256R1,
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
     MBEDTLS_ECP_DP_SECP384R1,
+#endif
     MBEDTLS_ECP_DP_NONE
 };
 #endif
diff --git a/library/timing.c b/library/timing.c
index 413d133fb6..009516a6e3 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -51,7 +51,6 @@
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
 
 #include <windows.h>
-#include <winbase.h>
 #include <process.h>
 
 struct _hr_time
diff --git a/programs/Makefile b/programs/Makefile
index 28c747b769..d09949bbf2 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -296,6 +296,8 @@ x509/req_app$(EXEXT): x509/req_app.c $(DEP)
 clean:
 ifndef WINDOWS
 	rm -f $(APPS)
+	-rm -f ssl/ssl_pthread_server$(EXEXT)
+	-rm -f test/cpp_dummy_build$(EXEXT)
 else
 	del /S /Q /F *.o *.exe
 endif
diff --git a/scripts/data_files/vs2010-app-template.vcxproj b/scripts/data_files/vs2010-app-template.vcxproj
index fac9812e63..1db7ee42a4 100644
--- a/scripts/data_files/vs2010-app-template.vcxproj
+++ b/scripts/data_files/vs2010-app-template.vcxproj
@@ -53,7 +53,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/aescrypt2.vcxproj b/visualc/VS2010/aescrypt2.vcxproj
index db387f979e..63a124aeea 100644
--- a/visualc/VS2010/aescrypt2.vcxproj
+++ b/visualc/VS2010/aescrypt2.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/benchmark.vcxproj b/visualc/VS2010/benchmark.vcxproj
index 934c844388..ffbd1ad4d2 100644
--- a/visualc/VS2010/benchmark.vcxproj
+++ b/visualc/VS2010/benchmark.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/cert_app.vcxproj b/visualc/VS2010/cert_app.vcxproj
index fef0efe6d3..6f1c46eebd 100644
--- a/visualc/VS2010/cert_app.vcxproj
+++ b/visualc/VS2010/cert_app.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/cert_req.vcxproj b/visualc/VS2010/cert_req.vcxproj
index 7d8694bfe2..1e7edd0254 100644
--- a/visualc/VS2010/cert_req.vcxproj
+++ b/visualc/VS2010/cert_req.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/cert_write.vcxproj b/visualc/VS2010/cert_write.vcxproj
index 8891d8aefa..bed8728e4c 100644
--- a/visualc/VS2010/cert_write.vcxproj
+++ b/visualc/VS2010/cert_write.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/crl_app.vcxproj b/visualc/VS2010/crl_app.vcxproj
index c51caef540..9fbd408a94 100644
--- a/visualc/VS2010/crl_app.vcxproj
+++ b/visualc/VS2010/crl_app.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/crypt_and_hash.vcxproj b/visualc/VS2010/crypt_and_hash.vcxproj
index 99199d965f..fb7ef77d17 100644
--- a/visualc/VS2010/crypt_and_hash.vcxproj
+++ b/visualc/VS2010/crypt_and_hash.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/dh_client.vcxproj b/visualc/VS2010/dh_client.vcxproj
index b2fae8093d..a0990e1d59 100644
--- a/visualc/VS2010/dh_client.vcxproj
+++ b/visualc/VS2010/dh_client.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/dh_genprime.vcxproj b/visualc/VS2010/dh_genprime.vcxproj
index d9c19009a9..fdd6c6fdf8 100644
--- a/visualc/VS2010/dh_genprime.vcxproj
+++ b/visualc/VS2010/dh_genprime.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/dh_server.vcxproj b/visualc/VS2010/dh_server.vcxproj
index 6f87cb8b05..d1a73453bf 100644
--- a/visualc/VS2010/dh_server.vcxproj
+++ b/visualc/VS2010/dh_server.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/dtls_client.vcxproj b/visualc/VS2010/dtls_client.vcxproj
index 60715fe298..72b2d4b9e8 100644
--- a/visualc/VS2010/dtls_client.vcxproj
+++ b/visualc/VS2010/dtls_client.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/dtls_server.vcxproj b/visualc/VS2010/dtls_server.vcxproj
index 8789d7feab..b975369f3d 100644
--- a/visualc/VS2010/dtls_server.vcxproj
+++ b/visualc/VS2010/dtls_server.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ecdh_curve25519.vcxproj b/visualc/VS2010/ecdh_curve25519.vcxproj
index 1120111f19..748b6d1213 100644
--- a/visualc/VS2010/ecdh_curve25519.vcxproj
+++ b/visualc/VS2010/ecdh_curve25519.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ecdsa.vcxproj b/visualc/VS2010/ecdsa.vcxproj
index 3718c9f272..03418d082b 100644
--- a/visualc/VS2010/ecdsa.vcxproj
+++ b/visualc/VS2010/ecdsa.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/gen_entropy.vcxproj b/visualc/VS2010/gen_entropy.vcxproj
index 4c57655b27..89b41c0815 100644
--- a/visualc/VS2010/gen_entropy.vcxproj
+++ b/visualc/VS2010/gen_entropy.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/gen_key.vcxproj b/visualc/VS2010/gen_key.vcxproj
index a07e1aacc3..c8ea11f428 100644
--- a/visualc/VS2010/gen_key.vcxproj
+++ b/visualc/VS2010/gen_key.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/gen_random_ctr_drbg.vcxproj b/visualc/VS2010/gen_random_ctr_drbg.vcxproj
index 11740c448b..64200afbe5 100644
--- a/visualc/VS2010/gen_random_ctr_drbg.vcxproj
+++ b/visualc/VS2010/gen_random_ctr_drbg.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/gen_random_havege.vcxproj b/visualc/VS2010/gen_random_havege.vcxproj
index 01253ceefb..70c8138a07 100644
--- a/visualc/VS2010/gen_random_havege.vcxproj
+++ b/visualc/VS2010/gen_random_havege.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/generic_sum.vcxproj b/visualc/VS2010/generic_sum.vcxproj
index 0f2ecb43ca..21bd90f62c 100644
--- a/visualc/VS2010/generic_sum.vcxproj
+++ b/visualc/VS2010/generic_sum.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/hello.vcxproj b/visualc/VS2010/hello.vcxproj
index c986b07bed..b5f6eb005a 100644
--- a/visualc/VS2010/hello.vcxproj
+++ b/visualc/VS2010/hello.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/key_app.vcxproj b/visualc/VS2010/key_app.vcxproj
index f96a0b052b..0fc246a8f1 100644
--- a/visualc/VS2010/key_app.vcxproj
+++ b/visualc/VS2010/key_app.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/key_app_writer.vcxproj b/visualc/VS2010/key_app_writer.vcxproj
index 0e4af3a589..e4ef62b04c 100644
--- a/visualc/VS2010/key_app_writer.vcxproj
+++ b/visualc/VS2010/key_app_writer.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/mini_client.vcxproj b/visualc/VS2010/mini_client.vcxproj
index b5567bdfe5..3756404dd9 100644
--- a/visualc/VS2010/mini_client.vcxproj
+++ b/visualc/VS2010/mini_client.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/mpi_demo.vcxproj b/visualc/VS2010/mpi_demo.vcxproj
index d68bc75b37..d770d35aff 100644
--- a/visualc/VS2010/mpi_demo.vcxproj
+++ b/visualc/VS2010/mpi_demo.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/pem2der.vcxproj b/visualc/VS2010/pem2der.vcxproj
index 507c79a4d9..2f1248c5df 100644
--- a/visualc/VS2010/pem2der.vcxproj
+++ b/visualc/VS2010/pem2der.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/pk_decrypt.vcxproj b/visualc/VS2010/pk_decrypt.vcxproj
index 5ccaf4f1e9..168adf34b7 100644
--- a/visualc/VS2010/pk_decrypt.vcxproj
+++ b/visualc/VS2010/pk_decrypt.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/pk_encrypt.vcxproj b/visualc/VS2010/pk_encrypt.vcxproj
index d5ef208d8e..bb09f06aaa 100644
--- a/visualc/VS2010/pk_encrypt.vcxproj
+++ b/visualc/VS2010/pk_encrypt.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/pk_sign.vcxproj b/visualc/VS2010/pk_sign.vcxproj
index d21f17a414..98941f4be0 100644
--- a/visualc/VS2010/pk_sign.vcxproj
+++ b/visualc/VS2010/pk_sign.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/pk_verify.vcxproj b/visualc/VS2010/pk_verify.vcxproj
index 637ddd6f5e..6d3006e612 100644
--- a/visualc/VS2010/pk_verify.vcxproj
+++ b/visualc/VS2010/pk_verify.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/query_compile_time_config.vcxproj b/visualc/VS2010/query_compile_time_config.vcxproj
index 83a29f0679..e14764722f 100644
--- a/visualc/VS2010/query_compile_time_config.vcxproj
+++ b/visualc/VS2010/query_compile_time_config.vcxproj
@@ -55,7 +55,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/req_app.vcxproj b/visualc/VS2010/req_app.vcxproj
index 3ffcea5944..992efcfb4a 100644
--- a/visualc/VS2010/req_app.vcxproj
+++ b/visualc/VS2010/req_app.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_decrypt.vcxproj b/visualc/VS2010/rsa_decrypt.vcxproj
index 9e1d0a20ea..ffba32a6a2 100644
--- a/visualc/VS2010/rsa_decrypt.vcxproj
+++ b/visualc/VS2010/rsa_decrypt.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_encrypt.vcxproj b/visualc/VS2010/rsa_encrypt.vcxproj
index c3b03716c9..9f5f327841 100644
--- a/visualc/VS2010/rsa_encrypt.vcxproj
+++ b/visualc/VS2010/rsa_encrypt.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_genkey.vcxproj b/visualc/VS2010/rsa_genkey.vcxproj
index e6b5060000..824e3043ce 100644
--- a/visualc/VS2010/rsa_genkey.vcxproj
+++ b/visualc/VS2010/rsa_genkey.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_sign.vcxproj b/visualc/VS2010/rsa_sign.vcxproj
index c1147c3c2f..dda4756cdc 100644
--- a/visualc/VS2010/rsa_sign.vcxproj
+++ b/visualc/VS2010/rsa_sign.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_sign_pss.vcxproj b/visualc/VS2010/rsa_sign_pss.vcxproj
index adfee6d9cf..31da8cadee 100644
--- a/visualc/VS2010/rsa_sign_pss.vcxproj
+++ b/visualc/VS2010/rsa_sign_pss.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_verify.vcxproj b/visualc/VS2010/rsa_verify.vcxproj
index bb44b4f9df..b78dfc338e 100644
--- a/visualc/VS2010/rsa_verify.vcxproj
+++ b/visualc/VS2010/rsa_verify.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/rsa_verify_pss.vcxproj b/visualc/VS2010/rsa_verify_pss.vcxproj
index 7781aa51aa..220ad2d421 100644
--- a/visualc/VS2010/rsa_verify_pss.vcxproj
+++ b/visualc/VS2010/rsa_verify_pss.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/selftest.vcxproj b/visualc/VS2010/selftest.vcxproj
index 12ff76d70f..1f5e10918f 100644
--- a/visualc/VS2010/selftest.vcxproj
+++ b/visualc/VS2010/selftest.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_client1.vcxproj b/visualc/VS2010/ssl_client1.vcxproj
index 4ac158224a..c36a8ed11e 100644
--- a/visualc/VS2010/ssl_client1.vcxproj
+++ b/visualc/VS2010/ssl_client1.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_client2.vcxproj b/visualc/VS2010/ssl_client2.vcxproj
index a960facf07..aa9a0c3af7 100644
--- a/visualc/VS2010/ssl_client2.vcxproj
+++ b/visualc/VS2010/ssl_client2.vcxproj
@@ -55,7 +55,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_fork_server.vcxproj b/visualc/VS2010/ssl_fork_server.vcxproj
index 922a9953ee..84c917d836 100644
--- a/visualc/VS2010/ssl_fork_server.vcxproj
+++ b/visualc/VS2010/ssl_fork_server.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_mail_client.vcxproj b/visualc/VS2010/ssl_mail_client.vcxproj
index a9b01d0d56..a89e3322d1 100644
--- a/visualc/VS2010/ssl_mail_client.vcxproj
+++ b/visualc/VS2010/ssl_mail_client.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_server.vcxproj b/visualc/VS2010/ssl_server.vcxproj
index ae28e1839a..7fb841e555 100644
--- a/visualc/VS2010/ssl_server.vcxproj
+++ b/visualc/VS2010/ssl_server.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/ssl_server2.vcxproj b/visualc/VS2010/ssl_server2.vcxproj
index 06a91cb495..b74bd65437 100644
--- a/visualc/VS2010/ssl_server2.vcxproj
+++ b/visualc/VS2010/ssl_server2.vcxproj
@@ -55,7 +55,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/strerror.vcxproj b/visualc/VS2010/strerror.vcxproj
index d7ec570d63..c3ec8fa746 100644
--- a/visualc/VS2010/strerror.vcxproj
+++ b/visualc/VS2010/strerror.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/udp_proxy.vcxproj b/visualc/VS2010/udp_proxy.vcxproj
index 30ae55e999..e75dd9a299 100644
--- a/visualc/VS2010/udp_proxy.vcxproj
+++ b/visualc/VS2010/udp_proxy.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
diff --git a/visualc/VS2010/zeroize.vcxproj b/visualc/VS2010/zeroize.vcxproj
index 9d311c7217..dff71d30e5 100644
--- a/visualc/VS2010/zeroize.vcxproj
+++ b/visualc/VS2010/zeroize.vcxproj
@@ -54,7 +54,6 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>Windows7.1SDK</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">