diff --git a/src/client/src/TSDBJNIConnector.c b/src/client/src/TSDBJNIConnector.c
index 5036983424..34204f96bf 100644
--- a/src/client/src/TSDBJNIConnector.c
+++ b/src/client/src/TSDBJNIConnector.c
@@ -583,7 +583,7 @@ JNIEXPORT jlong JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_consumeImp(JNIEn
     return 0l;
   }
 
-  return (long)res;
+  return (jlong)res;
 }
 
 JNIEXPORT void JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_unsubscribeImp(JNIEnv *env, jobject jobj, jlong sub,
diff --git a/src/client/src/tscLocalMerge.c b/src/client/src/tscLocalMerge.c
index 186c2871a1..99c3bc4fb3 100644
--- a/src/client/src/tscLocalMerge.c
+++ b/src/client/src/tscLocalMerge.c
@@ -972,7 +972,7 @@ static void doFillResult(SSqlObj *pSql, SLocalReducer *pLocalReducer, bool doneO
   }
 
   if (pRes->numOfRows > 0) {
-    int32_t currentTotal = pRes->numOfRowsGroup + pRes->numOfRows;
+    int32_t currentTotal = (int32_t)(pRes->numOfRowsGroup + pRes->numOfRows);
 
     if (pQueryInfo->limit.limit >= 0 && currentTotal > pQueryInfo->limit.limit) {
       int32_t overflow = (int32_t)(currentTotal - pQueryInfo->limit.limit);
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index f933366711..e5bb516ee6 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -2390,7 +2390,7 @@ bool validateIpAddress(const char* ip, size_t size) {
 
   strncpy(tmp, ip, size);
 
-  in_addr_t epAddr = inet_addr(tmp);
+  in_addr_t epAddr = taosInetAddr(tmp);
 
   return epAddr != INADDR_NONE;
 }
diff --git a/src/common/src/ttimezone.c b/src/common/src/ttimezone.c
index edb6aea7f9..62b1e0bb5c 100644
--- a/src/common/src/ttimezone.c
+++ b/src/common/src/ttimezone.c
@@ -50,7 +50,7 @@ void tsSetTimeZone() {
 #endif
 #endif
 
-  int32_t tz = (-timezone * MILLISECOND_PER_SECOND) / MILLISECOND_PER_HOUR;
+  int32_t tz = (int32_t)((-timezone * MILLISECOND_PER_SECOND) / MILLISECOND_PER_HOUR);
   tz += daylight;
 
   /*
diff --git a/src/os/inc/osSocket.h b/src/os/inc/osSocket.h
index 58f95c3c2d..ecc69ec3d3 100644
--- a/src/os/inc/osSocket.h
+++ b/src/os/inc/osSocket.h
@@ -65,6 +65,10 @@ void taosBlockSIGPIPE();
 // TAOS_OS_FUNC_SOCKET_SETSOCKETOPT
 int taosSetSockOpt(SOCKET socketfd, int level, int optname, void *optval, int optlen);
 
+// TAOS_OS_FUNC_SOCKET_INET
+uint32_t taosInetAddr(char *ipAddr);
+const char *taosInetNtoa(struct in_addr ipInt);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/os/inc/osWindows.h b/src/os/inc/osWindows.h
index 6665dcd920..994e3b991c 100644
--- a/src/os/inc/osWindows.h
+++ b/src/os/inc/osWindows.h
@@ -164,9 +164,25 @@ int        gettimeofday(struct timeval *ptv, void *pTimeZone);
 #define MSG_NOSIGNAL             0
 #define SO_NO_CHECK              0x1234
 #define SOL_TCP                  0x1234
-#define TCP_KEEPCNT              0x1234
-#define TCP_KEEPIDLE             0x1234
-#define TCP_KEEPINTVL            0x1234
+
+#ifndef TCP_KEEPCNT
+  #define TCP_KEEPCNT              0x1234
+#endif
+
+#ifndef TCP_KEEPIDLE
+  #define TCP_KEEPIDLE             0x1234
+#endif
+
+#ifndef TCP_KEEPINTVL
+  #define TCP_KEEPINTVL            0x1234
+#endif
+
+#ifdef _MSC_VER
+#if _MSC_VER >= 1900
+  #define TAOS_OS_FUNC_SOCKET_INET
+#endif
+#endif
+
 #define SHUT_RDWR                SD_BOTH
 #define SHUT_RD                  SD_RECEIVE
 #define SHUT_WR                  SD_SEND
diff --git a/src/os/src/detail/osSocket.c b/src/os/src/detail/osSocket.c
index c8ad6a5acc..8a51c389e9 100644
--- a/src/os/src/detail/osSocket.c
+++ b/src/os/src/detail/osSocket.c
@@ -57,4 +57,16 @@ int taosSetSockOpt(SOCKET socketfd, int level, int optname, void *optval, int op
   return setsockopt(socketfd, level, optname, optval, (socklen_t)optlen);
 }
 
+#endif
+
+#ifndef TAOS_OS_FUNC_SOCKET_INET
+
+uint32_t taosInetAddr(char *ipAddr) {
+  return inet_addr(ipAddr);
+}
+
+const char *taosInetNtoa(struct in_addr ipInt) {
+  return inet_ntoa(ipInt);
+}
+
 #endif
\ No newline at end of file
diff --git a/src/os/src/detail/osTime.c b/src/os/src/detail/osTime.c
index ced1643d2b..57634e468a 100644
--- a/src/os/src/detail/osTime.c
+++ b/src/os/src/detail/osTime.c
@@ -61,8 +61,15 @@ int64_t user_mktime64(const unsigned int year0, const unsigned int mon0,
   res  = res*24;
   res  = ((res + hour) * 60 + min) * 60 + sec;
 
+#ifdef _MSC_VER
+#if _MSC_VER >= 1900
+  int64_t timezone = _timezone;
+#endif
+#endif
+
   return (res + timezone);
 }
+
 // ==== mktime() kernel code =================//
 static int64_t m_deltaUtc = 0;
 void deltaToUtcInitOnce() {  
diff --git a/src/os/src/windows/w64Socket.c b/src/os/src/windows/w64Socket.c
index dd8961da40..8fd198ba80 100644
--- a/src/os/src/windows/w64Socket.c
+++ b/src/os/src/windows/w64Socket.c
@@ -62,4 +62,24 @@ int taosSetSockOpt(SOCKET socketfd, int level, int optname, void *optval, int op
   }
 
   return setsockopt(socketfd, level, optname, optval, optlen);
-}
\ No newline at end of file
+}
+
+#ifdef TAOS_OS_FUNC_SOCKET_INET
+
+uint32_t taosInetAddr(char *ipAddr) {
+  uint32_t value;
+  int ret = inet_pton(AF_INET, ipAddr, &value);
+  if (ret <= 0) {
+    return INADDR_NONE;
+  } else {
+    return value;
+  }
+}
+
+const char *taosInetNtoa(struct in_addr ipInt) {
+  // not thread safe, only for debug usage while print log
+  static char tmpDstStr[16];
+  return inet_ntop(AF_INET, &ipInt, tmpDstStr, INET6_ADDRSTRLEN);
+}
+
+#endif
\ No newline at end of file
diff --git a/src/plugins/http/src/httpServer.c b/src/plugins/http/src/httpServer.c
index 8ee92be31c..f4aca91cba 100644
--- a/src/plugins/http/src/httpServer.c
+++ b/src/plugins/http/src/httpServer.c
@@ -302,7 +302,7 @@ static void *httpAcceptHttpConnection(void *arg) {
 #if 0
     if (totalFds > tsHttpCacheSessions * 100) {
       httpError("fd:%d, ip:%s:%u, totalFds:%d larger than httpCacheSessions:%d*100, refuse connection", connFd,
-                inet_ntoa(clientAddr.sin_addr), htons(clientAddr.sin_port), totalFds, tsHttpCacheSessions);
+                taosInetNtoa(clientAddr.sin_addr), htons(clientAddr.sin_port), totalFds, tsHttpCacheSessions);
       taosCloseSocket(connFd);
       continue;
     }
@@ -316,14 +316,14 @@ static void *httpAcceptHttpConnection(void *arg) {
 
     pContext = httpCreateContext(connFd);
     if (pContext == NULL) {
-      httpError("fd:%d, ip:%s:%u, no enough resource to allocate http context", connFd, inet_ntoa(clientAddr.sin_addr),
+      httpError("fd:%d, ip:%s:%u, no enough resource to allocate http context", connFd, taosInetNtoa(clientAddr.sin_addr),
                 htons(clientAddr.sin_port));
       taosCloseSocket(connFd);
       continue;
     }
 
     pContext->pThread = pThread;
-    sprintf(pContext->ipstr, "%s:%u", inet_ntoa(clientAddr.sin_addr), htons(clientAddr.sin_port));
+    sprintf(pContext->ipstr, "%s:%u", taosInetNtoa(clientAddr.sin_addr), htons(clientAddr.sin_port));
     
     struct epoll_event event;
     event.events = EPOLLIN | EPOLLPRI | EPOLLWAKEUP | EPOLLERR | EPOLLHUP | EPOLLRDHUP;
diff --git a/src/plugins/monitor/src/monitorMain.c b/src/plugins/monitor/src/monitorMain.c
index 55c242763b..d76bb4bd82 100644
--- a/src/plugins/monitor/src/monitorMain.c
+++ b/src/plugins/monitor/src/monitorMain.c
@@ -234,17 +234,22 @@ static void monitorInitDatabaseCb(void *param, TAOS_RES *result, int32_t code) {
 }
 
 void monitorStopSystem() {
-  monitorInfo("monitor module is stopped");
-  monitorExecuteSQLFp = NULL;
+  if (tsMonitorConn.state == MONITOR_STATE_STOPPED) return;
   tsMonitorConn.state = MONITOR_STATE_STOPPED;
+  monitorExecuteSQLFp = NULL;
+
+  monitorInfo("monitor module is stopped");
+
   if (tsMonitorConn.initTimer != NULL) {
     taosTmrStopA(&(tsMonitorConn.initTimer));
   }
   if (tsMonitorConn.timer != NULL) {
     taosTmrStopA(&(tsMonitorConn.timer));
   }
-
-  taos_close(tsMonitorConn.conn);
+  if (tsMonitorConn.conn != NULL) {
+    taos_close(tsMonitorConn.conn);
+    tsMonitorConn.conn = NULL;
+  }
 }
 
 void monitorCleanUpSystem() {
diff --git a/src/rpc/src/rpcTcp.c b/src/rpc/src/rpcTcp.c
index 9da11831e5..3475e0f317 100644
--- a/src/rpc/src/rpcTcp.c
+++ b/src/rpc/src/rpcTcp.c
@@ -254,11 +254,11 @@ static void *taosAcceptTcpConnection(void *arg) {
       pFdObj->ip = caddr.sin_addr.s_addr;
       pFdObj->port = htons(caddr.sin_port);
       tDebug("%s new TCP connection from %s:%hu, fd:%d FD:%p numOfFds:%d", pServerObj->label, 
-              inet_ntoa(caddr.sin_addr), pFdObj->port, connFd, pFdObj, pThreadObj->numOfFds);
+              taosInetNtoa(caddr.sin_addr), pFdObj->port, connFd, pFdObj, pThreadObj->numOfFds);
     } else {
       taosCloseSocket(connFd);
       tError("%s failed to malloc FdObj(%s) for connection from:%s:%hu", pServerObj->label, strerror(errno),
-             inet_ntoa(caddr.sin_addr), htons(caddr.sin_port));
+             taosInetNtoa(caddr.sin_addr), htons(caddr.sin_port));
     }  
 
     // pick up next thread for next connection
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index ccf4ea7317..704af2017e 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -133,7 +133,7 @@ static void taosReadDirectoryConfig(SGlobalCfg *cfg, char *input_value) {
 }
 
 static void taosReadIpStrConfig(SGlobalCfg *cfg, char *input_value) {
-  uint32_t value = inet_addr(input_value);
+  uint32_t value = taosInetAddr(input_value);
   char *   option = (char *)cfg->ptr;
   if (value == INADDR_NONE) {
     uError("config option:%s, input value:%s, is not a valid ip address, use default value:%s",
diff --git a/tests/tsim/src/simExe.c b/tests/tsim/src/simExe.c
index 50d1a9b5be..0529808b6b 100644
--- a/tests/tsim/src/simExe.c
+++ b/tests/tsim/src/simExe.c
@@ -748,11 +748,7 @@ bool simExecuteNativeSqlCommand(SScript *script, char *rest, bool isSlow) {
               sprintf(value, "%d", *((int *)row[i]));
               break;
             case TSDB_DATA_TYPE_BIGINT:
-#ifdef _TD_ARM_32_
-              sprintf(value, "%lld", *((int64_t *)row[i]));
-#else
-              sprintf(value, "%ld", *((int64_t *)row[i]));
-#endif
+              sprintf(value, "%" PRId64, *((int64_t *)row[i]));
               break;
             case TSDB_DATA_TYPE_FLOAT:{
 #ifdef _TD_ARM_32_