Help!!! How to connect a PC to WinPE network?

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C++

Good afternoon, I have here a problem, but sorry to say so exhausted all my resources and do not know what else I have the following code:

#include <windows.h>
#include <tchar.h>
#include <stdio.h>

typedef int (*WpeutilFunction)( 
	HINSTANCE hInst, 
	HINSTANCE hPrev, 
	LPTSTR lpszCmdLine, 
	int nCmdShow 
	);

int __cdecl _tmain( int argc, TCHAR *argv[] )
{
    HMODULE         hWpeutil          = NULL;
    WpeutilFunction InitializeNetwork = NULL;
    int             result            = 0;
    TCHAR           szCmdLine[]       = _T("");

    hWpeutil = LoadLibrary( _T("wpeutil") );

    if( NULL == hWpeutil )
    {
        _tprintf( _T("Unable to load wpeutil.dll\n") );
        return GetLastError();
    }

    InitializeNetwork = (WpeutilFunction)GetProcAddress( 
		hWpeutil, 
		"InitializeNetworkW" 
		);

    if( NULL == InitializeNetwork )
    {
        FreeLibrary( hWpeutil );
        return GetLastError();
    }

    result = InitializeNetwork( NULL, NULL, szCmdLine, SW_SHOW );

    if( ERROR_SUCCESS == result )
    {
        _tprintf( _T("Network initialized.\n") );
    }
    else
    {
        _tprintf( _T("Initialize failed: 0x%08x"), result );
    }

    FreeLibrary( hWpeutil );
    return result;
}

This helps me lift the WinPE network services, but when I send a ping any machine in the domain that I get that does not reach the machine, then rises and network services, but as I can do to locate or can get the domain or at least be able to access the machines or not missing something or include in the compilation of the boot WinPE ISO touches add a network driver or what may be the solution?

We would greatly appreciate an answer or a light, I do not see anything. Thank you.

At. DiegoV