diff --git a/NetworkSocket.cpp b/NetworkSocket.cpp
index 4071b7c..3f7f02e 100644
--- a/NetworkSocket.cpp
+++ b/NetworkSocket.cpp
@@ -292,7 +292,7 @@ void NetworkSocketTCPObfuscated::Receive(NetworkPacket *packet){
 	}
 
 	if(packetLen>packet->length){
-		LOGW("packet too big to fit into buffer (%u vs %u)", packetLen, packet->length);
+		LOGW("packet too big to fit into buffer (%u vs %u)", (unsigned int)packetLen, (unsigned int)packet->length);
 		packet->length=0;
 		return;
 	}
diff --git a/NetworkSocket.h b/NetworkSocket.h
index e66015f..6c89d74 100644
--- a/NetworkSocket.h
+++ b/NetworkSocket.h
@@ -28,6 +28,7 @@ namespace tgvoip {
 		virtual std::string ToString()=0;
 		bool operator==(const NetworkAddress& other);
 		bool operator!=(const NetworkAddress& other);
+		virtual ~NetworkAddress()=default;
 	};
 
 	class IPv4Address : public NetworkAddress{
diff --git a/logging.h b/logging.h
index b777756..cbe811b 100644
--- a/logging.h
+++ b/logging.h
@@ -16,10 +16,6 @@
 void tgvoip_log_file_printf(char level, const char* msg, ...);
 void tgvoip_log_file_write_header();
 
-#if !defined(snprintf) && defined(_WIN32) && defined(__cplusplus_winrt)
-#define snprintf _snprintf
-#endif
-
 #if defined(__ANDROID__)
 
 #include <android/log.h>
@@ -48,6 +44,10 @@ void tgvoip_log_file_write_header();
 #include <windows.h>
 #include <stdio.h>
 
+#if !defined(snprintf) && defined(_WIN32) && defined(__cplusplus_winrt)
+#define snprintf _snprintf
+#endif
+
 #define _TGVOIP_W32_LOG_PRINT(verb, msg, ...){ char __log_buf[1024]; snprintf(__log_buf, 1024, "%c/tgvoip: " msg "\n", verb, ##__VA_ARGS__); OutputDebugStringA(__log_buf); tgvoip_log_file_printf((char)verb, msg, __VA_ARGS__);}
 
 #define LOGV(msg, ...) _TGVOIP_W32_LOG_PRINT('V', msg, ##__VA_ARGS__)
diff --git a/os/windows/CXWrapper.cpp b/os/windows/CXWrapper.cpp
index 424623b..5f71f3b 100644
--- a/os/windows/CXWrapper.cpp
+++ b/os/windows/CXWrapper.cpp
@@ -149,15 +149,27 @@ void VoIPControllerWrapper::SetConfig(double initTimeout, double recvTimeout, Da
 	config.enableAEC=enableAEC;
 	config.enableAGC=enableAGC;
 	config.enableNS=enableNS;
-	if(logFilePath!=nullptr){
+	if(logFilePath!=nullptr&&!logFilePath->IsEmpty()){
 		WideCharToMultiByte(CP_UTF8, 0, logFilePath->Data(), -1, config.logFilePath, sizeof(config.logFilePath), NULL, NULL);
 	}
-	if(statsDumpFilePath!=nullptr){
+	if(statsDumpFilePath!=nullptr&&!statsDumpFilePath->IsEmpty()){
 		WideCharToMultiByte(CP_UTF8, 0, statsDumpFilePath->Data(), -1, config.statsDumpFilePath, sizeof(config.statsDumpFilePath), NULL, NULL);
 	}
 	controller->SetConfig(&config);
 }
 
+void VoIPControllerWrapper::SetProxy(ProxyProtocol protocol, Platform::String^ address, uint16_t port, Platform::String^ username, Platform::String^ password){
+	char _address[2000];
+	char _username[256];
+	char _password[256];
+
+	WideCharToMultiByte(CP_UTF8, 0, address->Data(), -1, _address, sizeof(_address), NULL, NULL);
+	WideCharToMultiByte(CP_UTF8, 0, username->Data(), -1, _username, sizeof(_username), NULL, NULL);
+	WideCharToMultiByte(CP_UTF8, 0, password->Data(), -1, _password, sizeof(_password), NULL, NULL);
+
+	controller->SetProxy((int)protocol, _address, port, _username, _password);
+}
+
 void VoIPControllerWrapper::UpdateServerConfig(Platform::String^ json){
 	JsonObject^ jconfig=JsonValue::Parse(json)->GetObject();
 	std::map<std::string, std::string> config;
diff --git a/os/windows/CXWrapper.h b/os/windows/CXWrapper.h
index 4d36c8a..d00d5fb 100644
--- a/os/windows/CXWrapper.h
+++ b/os/windows/CXWrapper.h
@@ -53,6 +53,11 @@ namespace libtgvoip{
 		Always
 	};
 
+	public enum class ProxyProtocol{
+		None=0,
+		SOCKS5
+	};
+
 	public interface class IStateCallback{
 		void OnCallStateChanged(CallState newState);
 	};
@@ -69,6 +74,7 @@ namespace libtgvoip{
 		void SetMicMute(bool mute);
 		void SetEncryptionKey(const Platform::Array<uint8>^ key, bool isOutgoing);
 		void SetConfig(double initTimeout, double recvTimeout, DataSavingMode dataSavingMode, bool enableAEC, bool enableNS, bool enableAGC, Platform::String^ logFilePath, Platform::String^ statsDumpFilePath);
+		void SetProxy(ProxyProtocol protocol, Platform::String^ address, uint16_t port, Platform::String^ username, Platform::String^ password);
 		Platform::String^ GetDebugString();
 		Platform::String^ GetDebugLog();
 		Error GetLastError();