diff --git a/mongoose.c b/mongoose.c
index b7ceadd4..84978f61 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -2966,6 +2966,8 @@ static void mg_set_non_blocking_mode(SOCKET fd) {
   setsockopt(fd, 0, FREERTOS_SO_SNDTIMEO, &off, sizeof(off));
 #elif MG_ARCH == MG_ARCH_FREERTOS_LWIP
   lwip_fcntl(fd, F_SETFL, O_NONBLOCK);
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  fcntl(fd, F_SETFL, O_NONBLOCK);
 #else
   fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK, FD_CLOEXEC);
 #endif
@@ -3011,7 +3013,7 @@ SOCKET mg_open_listener(const char *url, struct mg_addr *addr) {
 #endif
         bind(fd, &usa.sa, slen) == 0 &&
         // NOTE(lsm): FreeRTOS uses backlog value as a connection limit
-        (type == SOCK_DGRAM || listen(fd, 128) == 0)) {
+        (type == SOCK_DGRAM || listen(fd, MG_SOCK_LISTEN_BACKLOG_SIZE) == 0)) {
       // In case port was set to 0, get the real port number
       if (getsockname(fd, &usa.sa, &slen) == 0) {
         addr->port = usa.sin.sin_port;
@@ -3136,7 +3138,7 @@ static void close_conn(struct mg_connection *c) {
 }
 
 static void setsockopts(struct mg_connection *c) {
-#if MG_ARCH == MG_ARCH_FREERTOS_TCP
+#if MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_AZURERTOS
   (void) c;
 #else
   int on = 1;
@@ -3210,6 +3212,12 @@ static void accept_conn(struct mg_mgr *mgr, struct mg_connection *lsn) {
   socklen_t sa_len = sizeof(usa);
   SOCKET fd = accept(FD(lsn), &usa.sa, &sa_len);
   if (fd == INVALID_SOCKET) {
+#if MG_ARCH == MG_ARCH_AZURERTOS
+  // AzureRTOS, in non-block socket mode can mark listening socket readable
+  // even it is not. See comment for 'select' func implementation in nx_bsd.c
+  // That's not an error, just should try later
+	if (MG_SOCK_ERRNO != EAGAIN)
+#endif
     LOG(LL_ERROR, ("%lu accept failed, errno %d", lsn->id, MG_SOCK_ERRNO));
 #if (!defined(_WIN32) && (MG_ARCH != MG_ARCH_FREERTOS_TCP))
   } else if ((long) fd >= FD_SETSIZE) {
@@ -4457,7 +4465,7 @@ double mg_time(void) {
                     ((int64_t) ftime.dwHighDateTime << 32)) /
                    10000000.0) -
          11644473600;
-#elif MG_ARCH == MG_ARCH_FREERTOS_TCP
+#elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_AZURERTOS
   return mg_millis() / 1000.0;
 #else
   struct timeval tv;
@@ -4473,6 +4481,8 @@ void mg_usleep(unsigned long usecs) {
   ets_delay_us(usecs);
 #elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_FREERTOS_LWIP
   vTaskDelay(pdMS_TO_TICKS(usecs / 1000));
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  tx_thread_sleep((usecs / 1000) * TX_TIMER_TICKS_PER_SECOND);
 #else
   usleep((useconds_t) usecs);
 #endif
@@ -4487,6 +4497,8 @@ unsigned long mg_millis(void) {
   return xTaskGetTickCount() * portTICK_PERIOD_MS;
 #elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_FREERTOS_LWIP
   return xTaskGetTickCount() * portTICK_PERIOD_MS;
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  return tx_time_get() * (1000 /* MS per SEC */ / TX_TIMER_TICKS_PER_SECOND);
 #else
   struct timespec ts;
   clock_gettime(CLOCK_REALTIME, &ts);
diff --git a/mongoose.h b/mongoose.h
index 0ae3de3b..de4ee5a6 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -88,6 +88,10 @@ extern "C" {
 #define MG_PATH_MAX PATH_MAX
 #endif
 
+#ifndef MG_SOCK_LISTEN_BACKLOG_SIZE
+#define MG_SOCK_LISTEN_BACKLOG_SIZE 128
+#endif
+
 
 #define MG_ARCH_CUSTOM 0
 #define MG_ARCH_UNIX 1
@@ -96,6 +100,7 @@ extern "C" {
 #define MG_ARCH_ESP8266 4
 #define MG_ARCH_FREERTOS_TCP 5
 #define MG_ARCH_FREERTOS_LWIP 6
+#define MG_ARCH_AZURERTOS 7
 
 #if !defined(MG_ARCH)
 #if defined(__unix__) || defined(__APPLE__)
@@ -108,6 +113,8 @@ extern "C" {
 #define MG_ARCH MG_ARCH_ESP32
 #elif defined(FREERTOS_IP_H)
 #define MG_ARCH MG_ARCH_FREERTOS_TCP
+#elif defined(AZURE_RTOS_THREADX)
+#define MG_ARCH MG_ARCH_AZURERTOS
 #endif
 
 #if !defined(MG_ARCH)
@@ -135,6 +142,44 @@ extern "C" {
 
 
 
+#if MG_ARCH == MG_ARCH_AZURERTOS
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <time.h>
+#include <stdio.h>
+ 
+#include <tx_api.h>
+#include <fx_api.h>
+
+#include <tx_port.h>
+#include <nx_port.h>
+#include <nx_api.h>
+#include <nx_bsd.h>
+
+#ifdef __REDLIB__
+#define va_copy(d,s)__builtin_va_copy(d,s)
+#endif
+
+#define PATH_MAX FX_MAXIMUM_PATH
+#define MG_DIRSEP '\\'
+
+#define socklen_t int
+#define closesocket(x) soc_close(x)
+#define gmtime_r(a, b) gmtime(a)
+#define MG_INT64_FMT "%lld"
+
+static __inline struct tm *localtime_r(time_t *t, struct tm *tm) {
+  (void) tm;
+  return localtime(t);
+}
+
+#undef FOPEN_MAX
+
+#endif
+
+
 #if MG_ARCH == MG_ARCH_ESP32
 
 #include <ctype.h>
diff --git a/src/arch.h b/src/arch.h
index 21339519..1d7d0c0b 100644
--- a/src/arch.h
+++ b/src/arch.h
@@ -7,6 +7,7 @@
 #define MG_ARCH_ESP8266 4
 #define MG_ARCH_FREERTOS_TCP 5
 #define MG_ARCH_FREERTOS_LWIP 6
+#define MG_ARCH_AZURERTOS 7
 
 #if !defined(MG_ARCH)
 #if defined(__unix__) || defined(__APPLE__)
@@ -19,6 +20,8 @@
 #define MG_ARCH MG_ARCH_ESP32
 #elif defined(FREERTOS_IP_H)
 #define MG_ARCH MG_ARCH_FREERTOS_TCP
+#elif defined(AZURE_RTOS_THREADX)
+#define MG_ARCH MG_ARCH_AZURERTOS
 #endif
 
 #if !defined(MG_ARCH)
diff --git a/src/arch_azurertos.h b/src/arch_azurertos.h
new file mode 100644
index 00000000..633cf33f
--- /dev/null
+++ b/src/arch_azurertos.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#if MG_ARCH == MG_ARCH_AZURERTOS
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <time.h>
+#include <stdio.h>
+ 
+#include <tx_api.h>
+#include <fx_api.h>
+
+#include <tx_port.h>
+#include <nx_port.h>
+#include <nx_api.h>
+#include <nx_bsd.h>
+
+#ifdef __REDLIB__
+#define va_copy(d,s)__builtin_va_copy(d,s)
+#endif
+
+#define PATH_MAX FX_MAXIMUM_PATH
+#define MG_DIRSEP '\\'
+
+#define socklen_t int
+#define closesocket(x) soc_close(x)
+#define gmtime_r(a, b) gmtime(a)
+#define MG_INT64_FMT "%lld"
+
+static __inline struct tm *localtime_r(time_t *t, struct tm *tm) {
+  (void) tm;
+  return localtime(t);
+}
+
+#undef FOPEN_MAX
+
+#endif
diff --git a/src/config.h b/src/config.h
index a7c54913..645dea42 100644
--- a/src/config.h
+++ b/src/config.h
@@ -62,3 +62,7 @@
 #ifndef MG_PATH_MAX
 #define MG_PATH_MAX PATH_MAX
 #endif
+
+#ifndef MG_SOCK_LISTEN_BACKLOG_SIZE
+#define MG_SOCK_LISTEN_BACKLOG_SIZE 128
+#endif
diff --git a/src/sock.c b/src/sock.c
index 028e28f0..c59f5167 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -120,6 +120,8 @@ static void mg_set_non_blocking_mode(SOCKET fd) {
   setsockopt(fd, 0, FREERTOS_SO_SNDTIMEO, &off, sizeof(off));
 #elif MG_ARCH == MG_ARCH_FREERTOS_LWIP
   lwip_fcntl(fd, F_SETFL, O_NONBLOCK);
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  fcntl(fd, F_SETFL, O_NONBLOCK);
 #else
   fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK, FD_CLOEXEC);
 #endif
@@ -165,7 +167,7 @@ SOCKET mg_open_listener(const char *url, struct mg_addr *addr) {
 #endif
         bind(fd, &usa.sa, slen) == 0 &&
         // NOTE(lsm): FreeRTOS uses backlog value as a connection limit
-        (type == SOCK_DGRAM || listen(fd, 128) == 0)) {
+        (type == SOCK_DGRAM || listen(fd, MG_SOCK_LISTEN_BACKLOG_SIZE) == 0)) {
       // In case port was set to 0, get the real port number
       if (getsockname(fd, &usa.sa, &slen) == 0) {
         addr->port = usa.sin.sin_port;
@@ -290,7 +292,7 @@ static void close_conn(struct mg_connection *c) {
 }
 
 static void setsockopts(struct mg_connection *c) {
-#if MG_ARCH == MG_ARCH_FREERTOS_TCP
+#if MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_AZURERTOS
   (void) c;
 #else
   int on = 1;
@@ -364,6 +366,12 @@ static void accept_conn(struct mg_mgr *mgr, struct mg_connection *lsn) {
   socklen_t sa_len = sizeof(usa);
   SOCKET fd = accept(FD(lsn), &usa.sa, &sa_len);
   if (fd == INVALID_SOCKET) {
+#if MG_ARCH == MG_ARCH_AZURERTOS
+  // AzureRTOS, in non-block socket mode can mark listening socket readable
+  // even it is not. See comment for 'select' func implementation in nx_bsd.c
+  // That's not an error, just should try later
+	if (MG_SOCK_ERRNO != EAGAIN)
+#endif
     LOG(LL_ERROR, ("%lu accept failed, errno %d", lsn->id, MG_SOCK_ERRNO));
 #if (!defined(_WIN32) && (MG_ARCH != MG_ARCH_FREERTOS_TCP))
   } else if ((long) fd >= FD_SETSIZE) {
diff --git a/src/util.c b/src/util.c
index f070939f..24c83b8e 100644
--- a/src/util.c
+++ b/src/util.c
@@ -314,7 +314,7 @@ double mg_time(void) {
                     ((int64_t) ftime.dwHighDateTime << 32)) /
                    10000000.0) -
          11644473600;
-#elif MG_ARCH == MG_ARCH_FREERTOS_TCP
+#elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_AZURERTOS
   return mg_millis() / 1000.0;
 #else
   struct timeval tv;
@@ -330,6 +330,8 @@ void mg_usleep(unsigned long usecs) {
   ets_delay_us(usecs);
 #elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_FREERTOS_LWIP
   vTaskDelay(pdMS_TO_TICKS(usecs / 1000));
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  tx_thread_sleep((usecs / 1000) * TX_TIMER_TICKS_PER_SECOND);
 #else
   usleep((useconds_t) usecs);
 #endif
@@ -344,6 +346,8 @@ unsigned long mg_millis(void) {
   return xTaskGetTickCount() * portTICK_PERIOD_MS;
 #elif MG_ARCH == MG_ARCH_FREERTOS_TCP || MG_ARCH == MG_ARCH_FREERTOS_LWIP
   return xTaskGetTickCount() * portTICK_PERIOD_MS;
+#elif MG_ARCH == MG_ARCH_AZURERTOS
+  return tx_time_get() * (1000 /* MS per SEC */ / TX_TIMER_TICKS_PER_SECOND);
 #else
   struct timespec ts;
   clock_gettime(CLOCK_REALTIME, &ts);