diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 14eb8e1e..5e921dd2 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -24,7 +24,7 @@
 # compilation options
 ###
 IF (NOT WIN32)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -std=c++11")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 ENDIF (NOT WIN32)
 
 
@@ -60,3 +60,22 @@ target_link_libraries(cpp_redis_kill cpp_redis)
 
 add_executable(cpp_redis_high_availability_client cpp_redis_high_availability_client.cpp)
 target_link_libraries(cpp_redis_high_availability_client cpp_redis)
+
+###
+# link libs
+###
+IF (WIN32)
+  target_link_libraries(cpp_redis_client ws2_32)
+  target_link_libraries(cpp_redis_future_client ws2_32)
+  target_link_libraries(cpp_redis_subscriber ws2_32)
+  target_link_libraries(cpp_redis_logger ws2_32)
+  target_link_libraries(cpp_redis_kill ws2_32)
+  target_link_libraries(cpp_redis_high_availability_client ws2_32)
+ELSE ()
+  target_link_libraries(cpp_redis_client pthread)
+  target_link_libraries(cpp_redis_future_client pthread)
+  target_link_libraries(cpp_redis_subscriber pthread)
+  target_link_libraries(cpp_redis_logger pthread)
+  target_link_libraries(cpp_redis_kill pthread)
+  target_link_libraries(cpp_redis_high_availability_client pthread)
+ENDIF (WIN32)
diff --git a/includes/cpp_redis/core/client.hpp b/includes/cpp_redis/core/client.hpp
index e6f9071d..db7823cc 100644
--- a/includes/cpp_redis/core/client.hpp
+++ b/includes/cpp_redis/core/client.hpp
@@ -1091,11 +1091,11 @@ class client {
   //!
   //! reconnection status
   //!
-  std::atomic_bool m_reconnecting = ATOMIC_VAR_INIT(false);
+  std::atomic_bool m_reconnecting;
   //!
   //! to force cancel reconnection
   //!
-  std::atomic_bool m_cancel = ATOMIC_VAR_INIT(false);
+  std::atomic_bool m_cancel;
 
   //!
   //! sent commands waiting to be executed
@@ -1120,7 +1120,7 @@ class client {
   //!
   //! number of callbacks currently being running
   //!
-  std::atomic<unsigned int> m_callbacks_running = ATOMIC_VAR_INIT(0);
+  std::atomic<unsigned int> m_callbacks_running;
 }; // namespace cpp_redis
 
 } // namespace cpp_redis
diff --git a/includes/cpp_redis/core/sentinel.hpp b/includes/cpp_redis/core/sentinel.hpp
index 11224a3c..51b64405 100644
--- a/includes/cpp_redis/core/sentinel.hpp
+++ b/includes/cpp_redis/core/sentinel.hpp
@@ -303,7 +303,7 @@ class sentinel {
   //!
   //! number of callbacks currently being running
   //!
-  std::atomic<unsigned int> m_callbacks_running = ATOMIC_VAR_INIT(0);
+  std::atomic<unsigned int> m_callbacks_running;
 };
 
 }; // namespace cpp_redis
diff --git a/includes/cpp_redis/core/subscriber.hpp b/includes/cpp_redis/core/subscriber.hpp
index e77f149f..2c9ceca5 100644
--- a/includes/cpp_redis/core/subscriber.hpp
+++ b/includes/cpp_redis/core/subscriber.hpp
@@ -409,11 +409,11 @@ class subscriber {
   //!
   //! reconnection status
   //!
-  std::atomic_bool m_reconnecting = ATOMIC_VAR_INIT(false);
+  std::atomic_bool m_reconnecting;
   //!
   //! to force cancel reconnection
   //!
-  std::atomic_bool m_cancel = ATOMIC_VAR_INIT(false);
+  std::atomic_bool m_cancel;
 
   //!
   //! subscribed channels and their associated channels
diff --git a/sources/core/client.cpp b/sources/core/client.cpp
index f78d2e26..69ce4a4a 100644
--- a/sources/core/client.cpp
+++ b/sources/core/client.cpp
@@ -26,13 +26,19 @@
 namespace cpp_redis {
 
 #ifndef __CPP_REDIS_USE_CUSTOM_TCP_CLIENT
-client::client(void) {
+client::client(void)
+: m_reconnecting(false)
+, m_cancel(false)
+, m_callbacks_running(0) {
   __CPP_REDIS_LOG(debug, "cpp_redis::client created");
 }
 #endif /* __CPP_REDIS_USE_CUSTOM_TCP_CLIENT */
 
 client::client(const std::shared_ptr<network::tcp_client_iface>& tcp_client)
-: m_client(tcp_client) {
+: m_client(tcp_client)
+, m_reconnecting(false)
+, m_cancel(false)
+, m_callbacks_running(0) {
   __CPP_REDIS_LOG(debug, "cpp_redis::client created");
 }
 
diff --git a/sources/core/sentinel.cpp b/sources/core/sentinel.cpp
index d3c79252..8eaac600 100644
--- a/sources/core/sentinel.cpp
+++ b/sources/core/sentinel.cpp
@@ -29,13 +29,15 @@
 namespace cpp_redis {
 
 #ifndef __CPP_REDIS_USE_CUSTOM_TCP_CLIENT
-sentinel::sentinel(void) {
+sentinel::sentinel(void)
+: m_callbacks_running(0) {
   __CPP_REDIS_LOG(debug, "cpp_redis::sentinel created");
 }
 #endif /* __CPP_REDIS_USE_CUSTOM_TCP_CLIENT */
 
 sentinel::sentinel(const std::shared_ptr<network::tcp_client_iface>& tcp_client)
-: m_client(tcp_client) {
+: m_client(tcp_client)
+, m_callbacks_running(0) {
   __CPP_REDIS_LOG(debug, "cpp_redis::sentinel created");
 }
 
diff --git a/sources/core/subscriber.cpp b/sources/core/subscriber.cpp
index aa6ec675..e9e195d4 100644
--- a/sources/core/subscriber.cpp
+++ b/sources/core/subscriber.cpp
@@ -28,14 +28,18 @@ namespace cpp_redis {
 
 #ifndef __CPP_REDIS_USE_CUSTOM_TCP_CLIENT
 subscriber::subscriber(void)
-: m_auth_reply_callback(nullptr) {
+: m_auth_reply_callback(nullptr)
+, m_reconnecting(false)
+, m_cancel(false) {
   __CPP_REDIS_LOG(debug, "cpp_redis::subscriber created");
 }
 #endif /* __CPP_REDIS_USE_CUSTOM_TCP_CLIENT */
 
 subscriber::subscriber(const std::shared_ptr<network::tcp_client_iface>& tcp_client)
 : m_client(tcp_client)
-, m_auth_reply_callback(nullptr) {
+, m_auth_reply_callback(nullptr)
+, m_reconnecting(false)
+, m_cancel(false) {
   __CPP_REDIS_LOG(debug, "cpp_redis::subscriber created");
 }