diff --git a/DMRGateway.cpp b/DMRGateway.cpp
index 701ad82..c9f984f 100644
--- a/DMRGateway.cpp
+++ b/DMRGateway.cpp
@@ -70,7 +70,7 @@ static void sigHandler(int signum)
 const char* HEADER1 = "This software is for use on amateur radio networks only,";
 const char* HEADER2 = "it is to be used for educational purposes only. Its use on";
 const char* HEADER3 = "commercial networks is strictly prohibited.";
-const char* HEADER4 = "Copyright(C) 2017-2022 by Jonathan Naylor, G4KLX and others";
+const char* HEADER4 = "Copyright(C) 2017-2024 by Jonathan Naylor, G4KLX and others";
 
 int main(int argc, char** argv)
 {
diff --git a/DMRGateway.vcxproj b/DMRGateway.vcxproj
index 9276e93..db7d4ec 100644
--- a/DMRGateway.vcxproj
+++ b/DMRGateway.vcxproj
@@ -94,6 +94,9 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PreBuildEvent>
+      <Command>prebuild.cmd</Command>
+    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
@@ -109,10 +112,11 @@
       <AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <PreBuildEvent>
-      <Command>"$(ProjectDir)prebuild.cmd" $(ProjectDir)</Command>
+      <Command>prebuild.cmd</Command>
     </PreBuildEvent>
     <PreBuildEvent>
-      <Message>prebuild.cmd generates GitVersion.h from git refs heads master</Message>
+      <Message>
+      </Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -132,6 +136,9 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PreBuildEvent>
+      <Command>prebuild.cmd</Command>
+    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
@@ -150,6 +157,9 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PreBuildEvent>
+      <Command>prebuild.cmd</Command>
+    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClInclude Include="APRSWriter.h" />
diff --git a/UDPSocket.h b/UDPSocket.h
index 28e350c..75228a3 100644
--- a/UDPSocket.h
+++ b/UDPSocket.h
@@ -69,10 +69,11 @@ private:
 	unsigned short m_localPort;
 #if defined(_WIN32) || defined(_WIN64)
 	SOCKET         m_fd;
+	int            m_af;
 #else
 	int            m_fd;
-#endif
 	sa_family_t    m_af;
+#endif
 };
 
 #endif