求大神解答我程序哪里有错误

#include "afx.h"
#include <conio.h>
#include<stdio.h>
#include <winsock2.h>  
#pragma comment(lib,"WS2_32.lib")   
int winmain()
{
    WSADATA wsd;
    SOCKET s;
    char buf[1024];
    if(WSAStartup(MAKEWORD(2, 2),&wsd)!=0)
    {
        return -1;//失败
    }
    s=socket(AF_INET,SOCK_DGRAM,0);
    if (s==INVALID_SOCKET)
    {
        WSACleanup();
        return -1;
        //创建套接字失败  
    }
    SOCKADDR_IN servAddr;
    servAddr.sin_family=AF_INET;
    servAddr.sin_addr.s_addr=inet_addr("10.184.15.63");
    servAddr.sin_port=htons(2000);
    if(bind(s,(SOCKADDR*)&servAddr,sizeof(SOCKADDR_IN))==SOCKET_ERROR)
    {
        closesocket(s);
        WSACleanup();
        return -1;
        //绑定套接字失败  
    }
    int nServAddrlen=sizeof(servAddr);
    ZeroMemory(buf,sizeof(buf));
    CString ss="TimeNow";
    strcpy(buf,ss);
    SOCKADDR_IN clientAddr;
    clientAddr.sin_family=AF_INET;
    clientAddr.sin_addr.s_addr=inet_addr("10.184.15.63");
    clientAddr.sin_port=htons((short)5000);
    int nClientlen=sizeof(clientAddr);
    if(sendto(s,buf,sizeof(buf),0,(SOCKADDR*)&clientAddr,nClientlen)==SOCKET_ERROR)
    {
        closesocket(s);
        WSACleanup();
        return -1;
        //向服务器发送数据失败  
    }
    memset(buf,0,1024);
    if (recvfrom(s,buf,sizeof(buf),0,(SOCKADDR*)&servAddr,&nServAddrlen)==SOCKET_ERROR)
    {
        closesocket(s);
        WSACleanup();
        return -1;
        //接收数据失败  
    }
    SYSTEMTIME systime;  
    memcpy(&systime,buf,16);
    SetLocalTime(&systime);//设置本地与服务器时间同步。
    closesocket(s);
    WSACleanup();
    _getch();
    return 0;
}



在VS2013里面调试通过，但显示不出程序框，一闪而过，跪求解释原因，急求！！！！