diff --git a/Visual Studio Projects/UC15.vcproj b/Visual Studio Projects/UC15.vcproj
index e4901eca..6bb3d0db 100644
--- a/Visual Studio Projects/UC15.vcproj	
+++ b/Visual Studio Projects/UC15.vcproj	
@@ -41,7 +41,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="../PDP11/;../PDP18B/;../../windows-build/libSDL/SDL2-2.0.5/include;./;../;../slirp;../slirp_glue;../slirp_glue/qemu;../slirp_glue/qemu/win32/include;../../windows-build/winpcap/Wpdpack/Include;../../windows-build/PCRE/include/;../../windows-build/pthreads;../../windows-build/libSDL/SDL2-2.0.8/include;../../windows-build/libpng-1.6.18"
-				PreprocessorDefinitions="VM_PDP11;UC15;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;SIM_NEED_GIT_COMMIT_ID;HAVE_PCREPOSIX_H;PCRE_STATIC"
+				PreprocessorDefinitions="VM_PDP11;UC15;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;SIM_NEED_GIT_COMMIT_ID;HAVE_PCREPOSIX_H;PCRE_STATIC"
 				KeepComments="false"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
@@ -125,7 +125,7 @@
 				OmitFramePointers="true"
 				WholeProgramOptimization="true"
 				AdditionalIncludeDirectories="../PDP11/;../PDP18B/;../../windows-build/libSDL/SDL2-2.0.5/include;./;../;../slirp;../slirp_glue;../slirp_glue/qemu;../slirp_glue/qemu/win32/include;../../windows-build/winpcap/Wpdpack/Include;../../windows-build/PCRE/include/;../../windows-build/pthreads;../../windows-build/libSDL/SDL2-2.0.8/include;../../windows-build/libpng-1.6.18"
-				PreprocessorDefinitions="VM_PDP11;UC15;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;SIM_NEED_GIT_COMMIT_ID;HAVE_PCREPOSIX_H;PCRE_STATIC"
+				PreprocessorDefinitions="VM_PDP11;UC15;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;_WINSOCK_DEPRECATED_NO_WARNINGS;SIM_NEED_GIT_COMMIT_ID;HAVE_PCREPOSIX_H;PCRE_STATIC"
 				StringPooling="true"
 				RuntimeLibrary="0"
 				EnableFunctionLevelLinking="true"