--- include\RCF\IpAddress.hpp	Mon May 20 10:31:23 2013
+++ include\RCF\IpAddress.hpp	Fri Aug 07 10:48:07 2015
@@ -111,6 +111,9 @@
 
         void            setPort(int port);
 
+        void            setAfterCreateSocketCallback(boost::function<void(int)>);
+        boost::function<void(int)> getAfterCreateSocketCallback() const;
+
         bool            operator==(const IpAddress & rhs) const;
         bool            operator!=(const IpAddress & rhs) const;
         bool            operator<(const IpAddress &rhs) const;
@@ -126,6 +129,7 @@
 
         std::string             mIp;
         int                     mPort;
+        boost::function<void (int)> mAfterCreateSocketCallback;
     };
 
     class RCF_EXPORT IpAddressV4 : public IpAddress
--- src\RCF\IpAddress.cpp	Sun May 31 06:31:59 2015
+++ src\RCF\IpAddress.cpp	Mon Aug 10 12:41:09 2015
@@ -233,7 +233,11 @@
 
         int family = (mType == V4) ? PF_INET : PF_INET6 ;
 
+#ifdef BOOST_WINDOWS
+        int fd = static_cast<int>( ::WSASocketW(family, socketType, protocol, NULL, 0, WSA_FLAG_OVERLAPPED));
+#else
         int fd = static_cast<int>( ::socket(family, socketType, protocol) );
+#endif
         int err = Platform::OS::BsdSockets::GetLastError();
 
         RCF_VERIFY(
@@ -241,6 +245,9 @@
             Exception(
             _RcfError_Socket("socket()"), err, RcfSubsystem_Os));
 
+        if (mAfterCreateSocketCallback)
+           mAfterCreateSocketCallback(fd);
+
         return fd;
     }
 
@@ -530,6 +537,16 @@
                 mAddrV6.sin6_port = htons( static_cast<u_short>(port) );
             }
         }
+    }
+
+    void IpAddress::setAfterCreateSocketCallback(boost::function<void(int)> callback)
+    {
+        mAfterCreateSocketCallback = callback;
+    }
+
+    boost::function<void(int)> IpAddress::getAfterCreateSocketCallback() const
+    {
+        return mAfterCreateSocketCallback;
     }
 
     std::string IpAddress::string() const
--- src\RCF\TcpClientTransport.cpp	Sun May 31 06:31:59 2015
+++ src\RCF\TcpClientTransport.cpp	Mon Aug 10 14:07:14 2015
@@ -107,6 +107,7 @@
         {
             if (mConnectionAddr != mServerAddr)
             {
+                mServerAddr.setAfterCreateSocketCallback(mConnectionAddr.getAfterCreateSocketCallback());
                 mConnectionAddr = mServerAddr;
             }
         }