diff --git a/src/os/inc/osWindows.h b/src/os/inc/osWindows.h
index 0dbc3aac9cdcd7dfd30fb7275d74bbf542e21047..224e41593dac4bb4111d656d6e84f7c1f59fd93f 100644
--- a/src/os/inc/osWindows.h
+++ b/src/os/inc/osWindows.h
@@ -179,9 +179,9 @@ int        gettimeofday(struct timeval *ptv, void *pTimeZone);
 #endif
 
 #ifdef _MSC_VER
-#if _MSC_VER >= 1900
+//#if _MSC_VER >= 1900
   #define TAOS_OS_FUNC_SOCKET_INET
-#endif
+//#endif
 #endif
 
 #define SHUT_RDWR                SD_BOTH
diff --git a/src/os/src/windows/wSocket.c b/src/os/src/windows/wSocket.c
index 8fd198ba80fc6783161fd05b9fc73cbdbf28cf29..da9242d6a3bff471c4e749f0faf7c95b6c3a9d8c 100644
--- a/src/os/src/windows/wSocket.c
+++ b/src/os/src/windows/wSocket.c
@@ -61,6 +61,10 @@ int taosSetSockOpt(SOCKET socketfd, int level, int optname, void *optval, int op
     return 0;
   }
 
+   if (level == SOL_TCP && optname == TCP_KEEPCNT) {
+    return 0;
+  }
+
   return setsockopt(socketfd, level, optname, optval, optlen);
 }
 
diff --git a/src/util/src/tnettest.c b/src/util/src/tnettest.c
index 5a1430baede3cbcb2106f355420572a09d4c22cd..3793f3d3a944cc5c8d86c0dc0c0fa5bfe3cee764 100644
--- a/src/util/src/tnettest.c
+++ b/src/util/src/tnettest.c
@@ -73,7 +73,7 @@ static void *bindUdpPort(void *sarg) {
       continue;
     }
     if (iDataNum > 0) {
-      printf("recv Client: %s pkg from UDP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
+      printf("recv Client: %s pkg from UDP port: %d, pkg len: %d\n", taosInetNtoa(clientAddr.sin_addr), port, iDataNum);
       //printf("Read msg from udp:%s ... %s\n", buffer, buffer+iDataNum-16);
 
       sendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int)sin_size);
@@ -138,7 +138,7 @@ static void *bindTcpPort(void *sarg) {
         if (errno == EINTR) {
           continue;
         } else {
-          printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", inet_ntoa(clientAddr.sin_addr), port, strerror(errno));
+          printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", taosInetNtoa(clientAddr.sin_addr), port, strerror(errno));
           taosCloseSocket(serverSocket);
           return NULL;
         }
@@ -149,7 +149,7 @@ static void *bindTcpPort(void *sarg) {
       }      
     }
     
-    printf("recv Client: %s pkg from TCP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
+    printf("recv Client: %s pkg from TCP port: %d, pkg len: %d\n", taosInetNtoa(clientAddr.sin_addr), port, iDataNum);
     if (iDataNum > 0) {
       send(client, buffer, iDataNum, 0);
     }
@@ -197,7 +197,7 @@ static int checkTcpPort(info_s *info) {
 
   struct in_addr ipStr;
   memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send tcp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
+  sprintf(sendbuf, "client send tcp pkg to %s:%d, content: 1122334455", taosInetNtoa(ipStr), info->port);
   sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
 
   send(clientSocket, sendbuf, info->pktLen, 0);
@@ -267,7 +267,7 @@ static int checkUdpPort(info_s *info) {
 
   struct in_addr ipStr;
   memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send udp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
+  sprintf(sendbuf, "client send udp pkg to %s:%d, content: 1122334455", taosInetNtoa(ipStr), info->port);
   sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
 
   socklen_t sin_size = sizeof(*(struct sockaddr *)&serverAddr);
diff --git a/tests/tsim/src/simParse.c b/tests/tsim/src/simParse.c
index f201f149a14381cb1f068bc3132ab14feafd637c..8dcf83806f9588653041de343c2ba72e435d8e88 100644
--- a/tests/tsim/src/simParse.c
+++ b/tests/tsim/src/simParse.c
@@ -840,14 +840,14 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_EXP;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "exp");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = NULL;
   simCmdList[cmdno].executeCmd = simExecuteExpCmd;
 
   cmdno = SIM_CMD_IF;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "if");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseIfCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -855,7 +855,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_ELIF;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "elif");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseElifCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -863,7 +863,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_ELSE;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "else");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseElseCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -871,7 +871,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_ENDI;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "endi");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseEndiCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -879,7 +879,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_WHILE;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "while");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseWhileCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -887,7 +887,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_ENDW;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "endw");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseEndwCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -895,7 +895,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SWITCH;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "switch");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSwitchCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -903,7 +903,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_CASE;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "case");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseCaseCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -911,7 +911,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_DEFAULT;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "default");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseDefaultCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -919,7 +919,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_BREAK;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "break");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseBreakCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -927,7 +927,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_CONTINUE;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "continue");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseContinueCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -935,7 +935,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_ENDS;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "ends");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseEndsCmd;
   simCmdList[cmdno].executeCmd = NULL;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -943,7 +943,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SLEEP;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "sleep");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSleepCmd;
   simCmdList[cmdno].executeCmd = simExecuteSleepCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -951,7 +951,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_GOTO;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "goto");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseGotoCmd;
   simCmdList[cmdno].executeCmd = simExecuteGotoCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -959,7 +959,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_RUN;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "run");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseRunCmd;
   simCmdList[cmdno].executeCmd = simExecuteRunCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -967,7 +967,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_RUN_BACK;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "run_back");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseRunBackCmd;
   simCmdList[cmdno].executeCmd = simExecuteRunBackCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -975,7 +975,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SYSTEM;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "system");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSystemCmd;
   simCmdList[cmdno].executeCmd = simExecuteSystemCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -983,7 +983,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SYSTEM_CONTENT;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "system_content");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSystemContentCmd;
   simCmdList[cmdno].executeCmd = simExecuteSystemContentCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -991,7 +991,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_PRINT;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "print");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParsePrintCmd;
   simCmdList[cmdno].executeCmd = simExecutePrintCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -999,7 +999,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SQL;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "sql");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSqlCmd;
   simCmdList[cmdno].executeCmd = simExecuteSqlCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -1007,7 +1007,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SQL_ERROR;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "sql_error");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSqlErrorCmd;
   simCmdList[cmdno].executeCmd = simExecuteSqlErrorCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -1015,7 +1015,7 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_SQL_SLOW;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "sql_slow");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseSqlSlowCmd;
   simCmdList[cmdno].executeCmd = simExecuteSqlSlowCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));
@@ -1024,14 +1024,14 @@ void simInitsimCmdList() {
   cmdno = SIM_CMD_TEST;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "test");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = NULL;
   simCmdList[cmdno].executeCmd = simExecuteTestCmd;
 
   cmdno = SIM_CMD_RETURN;
   simCmdList[cmdno].cmdno = cmdno;
   strcpy(simCmdList[cmdno].name, "return");
-  simCmdList[cmdno].nlen = (int)strlen(simCmdList[cmdno].name);
+  simCmdList[cmdno].nlen = (int16_t)strlen(simCmdList[cmdno].name);
   simCmdList[cmdno].parseCmd = simParseReturnCmd;
   simCmdList[cmdno].executeCmd = simExecuteReturnCmd;
   simAddCmdIntoHash(&(simCmdList[cmdno]));