diff --git a/src/fwknop.c b/src/fwknop.c
index 48608350..4e8c6056 100644
--- a/src/fwknop.c
+++ b/src/fwknop.c
@@ -184,7 +184,7 @@ main(int argc, char **argv)
         res = send_spa_packet(ctx, &options);
         if(res < 0)
         {
-            perror("send_spa_packet");
+			fprintf(stderr, "[*] send_spa_packet: packet not sent.");
             return(1);
         }
         else
diff --git a/src/spa_comm.c b/src/spa_comm.c
index 7f93e18a..e0dca7f9 100644
--- a/src/spa_comm.c
+++ b/src/spa_comm.c
@@ -83,7 +83,11 @@ send_spa_packet_udp(char *spa_data, int sd_len, struct sockaddr_in *saddr,
             res, sd_len);
     }
 
+#ifdef WIN32
+	closesocket(sock);
+#else
     close(sock);
+#endif
 
     return(res);
 }
@@ -108,7 +112,11 @@ send_spa_packet_tcp(char *spa_data, int sd_len, struct sockaddr_in *saddr,
     if(res < 0)
     {
         perror("[*] send_spa_packet_tcp: connect: ");
-        close(sock);
+#ifdef WIN32
+		closesocket(sock);
+#else
+		close(sock);
+#endif
         return(-1);
     }
 
@@ -124,7 +132,11 @@ send_spa_packet_tcp(char *spa_data, int sd_len, struct sockaddr_in *saddr,
             res, sd_len);
     }
 
+#ifdef WIN32
+	closesocket(sock);
+#else
     close(sock);
+#endif
 
     return(res);
 }
diff --git a/win32/fwknop-client.vcproj b/win32/fwknop-client.vcproj
index 43324a18..1d3cf708 100644
--- a/win32/fwknop-client.vcproj
+++ b/win32/fwknop-client.vcproj
@@ -331,6 +331,86 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Release-full-static|Win32"
+			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
+			IntermediateDirectory="$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				AdditionalIncludeDirectories=".;../fko;../src"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS"
+				ExceptionHandling="0"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="0"
+				CompileAs="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies=" libfko.lib ws2_32.lib"
+				OutputFile="$(OutDir)\fwknop.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="$(OutDir)"
+				GenerateDebugInformation="false"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 	</Configurations>
 	<References>
 	</References>
diff --git a/win32/libfko.sln b/win32/libfko.sln
index c3f27c1a..15b78bfc 100644
--- a/win32/libfko.sln
+++ b/win32/libfko.sln
@@ -13,6 +13,7 @@ Global
 		Debug|Win32 = Debug|Win32
 		Debug-static|Win32 = Debug-static|Win32
 		Release|Win32 = Release|Win32
+		Release-full-static|Win32 = Release-full-static|Win32
 		Release-static|Win32 = Release-static|Win32
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
@@ -22,6 +23,8 @@ Global
 		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Debug-static|Win32.Build.0 = Debug-static|Win32
 		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release|Win32.ActiveCfg = Release|Win32
 		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release|Win32.Build.0 = Release|Win32
+		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release-full-static|Win32.ActiveCfg = Release-full-static|Win32
+		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release-full-static|Win32.Build.0 = Release-full-static|Win32
 		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release-static|Win32.ActiveCfg = Release-static|Win32
 		{133BC195-4877-481D-9F56-9F1BEBAD21F0}.Release-static|Win32.Build.0 = Release-static|Win32
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Debug|Win32.ActiveCfg = Debug|Win32
@@ -30,6 +33,8 @@ Global
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Debug-static|Win32.Build.0 = Debug-static|Win32
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release|Win32.ActiveCfg = Release|Win32
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release|Win32.Build.0 = Release|Win32
+		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release-full-static|Win32.ActiveCfg = Release-full-static|Win32
+		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release-full-static|Win32.Build.0 = Release-full-static|Win32
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release-static|Win32.ActiveCfg = Release-static|Win32
 		{D8AFA02D-14BF-42F4-97DE-EF4924D046D6}.Release-static|Win32.Build.0 = Release-static|Win32
 	EndGlobalSection
diff --git a/win32/libfko.vcproj b/win32/libfko.vcproj
index ad6d5962..52fa7673 100644
--- a/win32/libfko.vcproj
+++ b/win32/libfko.vcproj
@@ -287,6 +287,69 @@
 				Name="VCPostBuildEventTool"
 			/>
 		</Configuration>
+		<Configuration
+			Name="Release-full-static|Win32"
+			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
+			IntermediateDirectory="$(ConfigurationName)"
+			ConfigurationType="4"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="false"
+				AdditionalIncludeDirectories=".;..\fko;..\src"
+				PreprocessorDefinitions="WIN32;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				CompileAs="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
 	</Configurations>
 	<References>
 	</References>