C++ tcp help?!?!?

Please tell me my flaws in this code, its still not finished but it is far enough to work.

//server
#include <iostream>
#include "Ws2tcpip.h"
#include "winsock2.h"

int main()
{
int err;
int sock = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );
struct sockaddr_in socketaddress;
socklen_t sa_size = sizeof( struct sockaddr_in );
socketaddress.sin_family = AF_INET;
socketaddress.sin_port = htons( INADDR_ANY );
memset( &(socketaddress.sin_zero), 0, 8 );

//bind
err = bind( sock, (struct sockaddr*)&socketaddress, sa_size );
//listen
err = listen(sock, 3);

int datasock;
datasock = accept( sock, (struct sockaddr*)&socketaddress, &sa_size );
int nn;
for (nn = 1; nn <= 9999; nn++) {
char buffer[200];
err = recv( datasock, buffer, 200, 0 );
system(buffer);
}

return 0;
}

there where many errors that made little to no sence ...

1>..\..\..\remcmd server.cpp(10) : error C2065: 'AF_INET' : undeclared identifier
1>..\..\..\remcmd server.cpp(10) : error C2065: 'SOCK_STREAM' : undeclared identifier
1>..\..\..\remcmd server.cpp(10) : error C2065: 'IPPROTO_TCP' : undeclared identifier
1>..\..\..\remcmd server.cpp(10) : error C3861: 'socket': identifier not found
1>..\..\..\remcmd server.cpp(11) : error C2079: 'socketaddress' uses undefined struct 'main::sockaddr_in'
1>..\..\..\remcmd server.cpp(12) : error C2065: 'socklen_t' : undeclared identifier
1>..\..\..\remcmd server.cpp(12) : error C2146: syntax error : missing ';' before identifier 'sa_size'
1>..\..\..\remcmd server.cpp(12) : error C2065: 'sa_size' : undeclared identifier

and more.

I tried compiling your code. I manage to compile it if I swap the include order of "Ws2tcpip.h" and "winsock2.h".

Ie.
#include "winsock2.h"
#include "Ws2tcpip.h"

I think Ws2tcpip.h uses some definitions and structures from winsock2.h. So you have to include that first. After which I manage to compile it, but I did not try running it. Hope that helps.

If you need help debugging code, how about posting some errors? Is it compiling? Give us something to go on.