diff --git a/cmake/Thirdparty.cmake b/cmake/Thirdparty.cmake
index 8d2cce95..c81cc90e 100755
--- a/cmake/Thirdparty.cmake
+++ b/cmake/Thirdparty.cmake
@@ -54,7 +54,7 @@ if(WIN32)
         DOWNLOAD_DIR ${CMAKE_SOURCE_DIR}/download
         PREFIX ${CMAKE_BINARY_DIR}
         INSTALL_DIR ${CMAKE_SOURCE_DIR}
-        CONFIGURE_COMMAND ${CMAKE_COMMAND} . -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/src/curl
+        CONFIGURE_COMMAND ${CMAKE_COMMAND} . -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/src/curl -DBUILD_TESTING=OFF
         SOURCE_DIR ${CMAKE_BINARY_DIR}/src/curl-lib
         BUILD_IN_SOURCE 1
         BUILD_COMMAND ${CMAKE_COMMAND} --build . --config release -- /maxcpucount:4
diff --git a/unit-test/util/test_tc_serialport.cpp b/unit-test/util/test_tc_serialport.cpp
index abfc5b0b..e7f52b7a 100644
--- a/unit-test/util/test_tc_serialport.cpp
+++ b/unit-test/util/test_tc_serialport.cpp
@@ -99,7 +99,7 @@ TEST_F(UtilSerialPortTest, test)
         TC_SerialPort::Options options;
         
         // options.portName = "/dev/tty.usbmodem00000000050C1";
-        options.portName = "COM3";
+        options.portName = "//./COM14";
 
         options.baudRate = 9600;
         options.stopBits = 0;
diff --git a/util/src/tc_serialport.cpp b/util/src/tc_serialport.cpp
index cc9bc3f3..31893330 100644
--- a/util/src/tc_serialport.cpp
+++ b/util/src/tc_serialport.cpp
@@ -419,6 +419,7 @@ void TC_SerialPort::initialize()
 	{
 		callback->onOpen();
 	}
+
 }
 
 void TC_SerialPort::setParserCallback(const onparser_callback & onparser)
@@ -829,8 +830,9 @@ int TC_SerialPort::send(const void *buf, uint32_t len)
 	{
 		int nerr = TC_Exception::getSystemCode();
 		string err = "send error, errno:" + TC_Common::tostr(nerr) + "," + TC_Exception::parseError(nerr);
+		HANDLE fd = _serialFd;
 		close();
-		throw TC_SerialPortException("TC_SerialPort::send, fd:" + TC_Common::tostr(_serialFd) + ", error:" + err);
+		throw TC_SerialPortException("TC_SerialPort::send, fd:" + TC_Common::tostr(fd) + ", error:" + err);
 	}
 
 	return dwBytesWritten;
@@ -841,8 +843,9 @@ int TC_SerialPort::send(const void *buf, uint32_t len)
 	{
 		int nerr = TC_Exception::getSystemCode();
 		string err = "send error, errno:" + TC_Common::tostr(nerr) + "," + TC_Exception::parseError(nerr);
+		int fd = _serialFd;
 		close();
-		throw TC_SerialPortException("TC_SerialPort::send, fd:" + TC_Common::tostr(_serialFd) + ", error:" + err);
+		throw TC_SerialPortException("TC_SerialPort::send, fd:" + TC_Common::tostr(fd) + ", error:" + err);
 	}
 	return iRet;
 
@@ -877,8 +880,9 @@ int TC_SerialPort::recv()
 	{
 		int nerr = TC_Exception::getSystemCode();
 		string err = "recv error, errno:" + TC_Common::tostr(nerr) + "," + TC_Exception::parseError(nerr);
+		HANDLE fd = _serialFd;
 		close();
-		throw TC_SerialPortException("TC_SerialPort::recv, fd:" + TC_Common::tostr(_serialFd) + ", error:" + err);
+		throw TC_SerialPortException("TC_SerialPort::recv, fd:" + TC_Common::tostr(fd) + ", error:" + err);
 	}
 
 	if(dwBytesRead > 0){
@@ -898,8 +902,9 @@ int TC_SerialPort::recv(void *buf, uint32_t len)
 	{
 		int nerr = TC_Exception::getSystemCode();
 		string err = "recv error, errno:" + TC_Common::tostr(nerr) + "," + TC_Exception::parseError(nerr);
+		int fd = _serialFd;
 		close();
-		throw TC_SerialPortException("TC_SerialPort::recv, fd:" + TC_Common::tostr(_serialFd) + ", error:" + err);
+		throw TC_SerialPortException("TC_SerialPort::recv, fd:" + TC_Common::tostr(fd) + ", error:" + err);
 	}
 	return iRet;
 }
diff --git a/util/src/tc_socket.cpp b/util/src/tc_socket.cpp
index af5b58c6..293e5401 100755
--- a/util/src/tc_socket.cpp
+++ b/util/src/tc_socket.cpp
@@ -1022,7 +1022,7 @@ vector<string> TC_Socket::getLocalHosts(int domain, bool withLoopIp)
 bool TC_Socket::isPending()
 {
 #if TARGET_PLATFORM_WINDOWS
-    return TC_Exception::getSystemCode() == WSAEWOULDBLOCK;
+    return TC_Exception::getSystemCode() == WSAEWOULDBLOCK || TC_Exception::getSystemCode() == ERROR_IO_PENDING;
 #else
     return TC_Exception::getSystemCode() == EAGAIN;
 #endif
@@ -1031,7 +1031,7 @@ bool TC_Socket::isPending()
 bool TC_Socket::isInProgress()
 {
 #if TARGET_PLATFORM_WINDOWS
-    return TC_Exception::getSystemCode() == WSAEWOULDBLOCK;
+    return TC_Exception::getSystemCode() == WSAEWOULDBLOCK || TC_Exception::getSystemCode() == ERROR_IO_PENDING;
 #else
     return TC_Exception::getSystemCode() == EINPROGRESS;
 #endif