C++/CLI winapi сервер на сокетах

#pragma comment (lib,"Ws2_32.lib")
#include <WinSock2.h>
#include <iostream>
#include <WS2tcpip.h>
 
SOCKET Connect;
SOCKET* Connections;
SOCKET Listen;
 
int ClientCount=0;
 
void SendMessageToClient(int ID)
{
    char* buffer = new char[1024];
    for (;;Sleep(75))
    {
        memset(buffer, 0, sizeof(buffer));
            if (recv(Connections[ID]), buffer,  strlen(buffer),NULL)
            {
                printf(buffer);
                printf("\n");
                for (int i = 0; i <= ClientCount; i++)
                {
                    send(Connections[i], buffer, strlen(buffer), NULL);
                }
            }
    }
    delete buffer;
}
int main(void)
{
    setlocale(LC_ALL, "Russian");
    WSADATA data;
    WORD version = MAKEWORD(2, 2);
    int res = WSAStartup(version, &data);
    if (res != 0)
    {
        return 0;
    }
 
    struct addrinfo hints;
    struct addrinfo * result;
 
    Connections = (SOCKET*)calloc(64, sizeof(SOCKET));
 
    ZeroMemory(&hints, sizeof(hints));
 
    hints.ai_family = AF_INET;
    hints.ai_flags = AI_PASSIVE;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;
 
    getaddrinfo(NULL, "7770", &hints, &result);
 
    Listen = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
    bind(Listen, result->ai_addr, result->ai_addrlen);
    listen(Listen, SOMAXCONN);
 
    freeaddrinfo(result);
    
    printf("Start server...");
    char m_connect[] = "Connect...;;;5";
    for (;; Sleep(75))
    {
        if (Connect = accept(Listen, NULL, NULL))
        {
            printf("Client connect...");
            Connections[ClientCount] = Connect;
            send(Connections[ClientCount], m_connect, strlen(m_connect), NULL);
            ClientCount++;
            CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)SendMessageToClient, (LPVOID)(ClientCount - 1), NULL, NULL);
        }
    }
    return 1;
 
}

if (recv(Connections[ID], buffer,  strlen(buffer),NULL))