Hola


Especifica cual es la información que actualmente conoces del proceso asociado a "X" conexión, si por ejemplo conoces el handle entonces puedes la solución más sencilla sería utilizar la función Win32 GetProcessId:

• https://msdn.microsoft.com/en-us/library/windows/desktop/ms683215%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396

Saludos

Gracias por contestar tan rapido! veo que están afiladisimos 

Este es el code que estoy modificando (lo saque de la Api-Guide )
le agregué un modulo que me devuelve, apartir de la IP-remota, el HostName remoto y ademas crea una cache.. pero no le encontré como agregar el proceso que habre el puerto.

mi intension es lograrlo unicamente con las Api (Gracias Elektro no logre como agregar GetProcesId, y a okik por el aporte)

Asi que este es el code, seguro a alguien le va servir

Form1

Option Explicit
 
Private Type MIB_TCPROW
    dwState As Long
    dwLocalAddr As Long
    dwLocalPort As Long
    dwRemoteAddr As Long
    dwRemotePort As Long
End Type
 
Private Const ERROR_SUCCESS            As Long = 0
Private Const MIB_TCP_STATE_CLOSED     As Long = 1
Private Const MIB_TCP_STATE_LISTEN     As Long = 2
Private Const MIB_TCP_STATE_SYN_SENT   As Long = 3
Private Const MIB_TCP_STATE_SYN_RCVD   As Long = 4
Private Const MIB_TCP_STATE_ESTAB      As Long = 5
Private Const MIB_TCP_STATE_FIN_WAIT1  As Long = 6
Private Const MIB_TCP_STATE_FIN_WAIT2  As Long = 7
Private Const MIB_TCP_STATE_CLOSE_WAIT As Long = 8
Private Const MIB_TCP_STATE_CLOSING    As Long = 9
Private Const MIB_TCP_STATE_LAST_ACK   As Long = 10
Private Const MIB_TCP_STATE_TIME_WAIT  As Long = 11
Private Const MIB_TCP_STATE_DELETE_TCB As Long = 12
 
Private Declare Function GetTcpTable Lib "iphlpapi.dll" (ByRef pTcpTable As Any, ByRef pdwSize As Long, ByVal bOrder As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (dst As Any, src As Any, ByVal bcount As Long)
Private Declare Function lstrcpyA Lib "kernel32" (ByVal RetVal As String, ByVal Ptr As Long) As Long
Private Declare Function lstrlenA Lib "kernel32" (ByVal Ptr As Any) As Long
Private Declare Function inet_ntoa Lib "wsock32.dll" (ByVal addr As Long) As Long
Private Declare Function ntohs Lib "wsock32.dll" (ByVal addr As Long) As Long
 
Public iphDNS As New IPHostResolver
 
Public Function GetInetAddrStr(Address As Long) As String
    GetInetAddrStr = GetString(inet_ntoa(Address))
End Function
 
Private Sub ListView1_ColumnClick(ByVal ColumnHeader As ColumnHeader)
    ListView1.SortKey = ColumnHeader.Index - 1
    ListView1.SortOrder = Abs(Not ListView1.SortOrder = 1)
    ListView1.Sorted = True
End Sub
 
Public Function GetString(ByVal lpszA As Long) As String
    GetString = String$(lstrlenA(ByVal lpszA), 0)
    Call lstrcpyA(ByVal GetString, ByVal lpszA)
End Function
 
 
Private Sub Command1_Click()
 
Dim TcpRow As MIB_TCPROW
Dim buff() As Byte
Dim lngRequired As Long
Dim lngStrucSize As Long
Dim lngRows As Long
Dim lngCnt As Long
Dim strTmp As String
Dim lstLine As ListItem
 
If ListView1.ListItems.Count <> 0 Then ListView1.ListItems.Clear
Call GetTcpTable(ByVal 0&, lngRequired, 1)
 
If lngRequired > 0 Then
    ReDim buff(0 To lngRequired - 1) As Byte
    If GetTcpTable(buff(0), lngRequired, 1) = ERROR_SUCCESS Then
        lngStrucSize = LenB(TcpRow)
        'first 4 bytes indicate the number of entries
        CopyMemory lngRows, buff(0), 4
 
        For lngCnt = 1 To lngRows
            'moves past the four bytes obtained above to get data and cast into a TcpRow stucture
            CopyMemory TcpRow, buff(4 + (lngCnt - 1) * lngStrucSize), lngStrucSize
            'sends results to the listview
 
            With TcpRow
                Set lstLine = ListView1.ListItems.Add(, , GetInetAddrStr(.dwLocalAddr) & ":" & ntohs(.dwLocalPort))
                lstLine.SubItems(1) = GetInetAddrStr(.dwRemoteAddr) & ":" & ntohs(.dwRemotePort)
                'lstLine.SubItems(2) =
 
                Select Case .dwState
                    Case MIB_TCP_STATE_CLOSED:       strTmp = "Closed"
                    Case MIB_TCP_STATE_LISTEN:       strTmp = "Listening"
                    Case MIB_TCP_STATE_SYN_SENT:     strTmp = "Sent"
                    Case MIB_TCP_STATE_SYN_RCVD:     strTmp = "Received"
                    Case MIB_TCP_STATE_ESTAB:        strTmp = "Established"
                    Case MIB_TCP_STATE_FIN_WAIT1:    strTmp = "Fin wait 1"
                    Case MIB_TCP_STATE_FIN_WAIT2:    strTmp = "Fin wait 1"
                    Case MIB_TCP_STATE_CLOSE_WAIT:   strTmp = "Close wait"
                    Case MIB_TCP_STATE_CLOSING:      strTmp = "Closing"
                    Case MIB_TCP_STATE_LAST_ACK:     strTmp = "Last ack"
                    Case MIB_TCP_STATE_TIME_WAIT:    strTmp = "Time wait"
                    Case MIB_TCP_STATE_DELETE_TCB:   strTmp = "TCB deleted"
                End Select
 
                 lstLine.SubItems(2) = (.dwState) & " (" & strTmp & ")"
                 lstLine.SubItems(3) = iphDNS.AddressToName(GetInetAddrStr(.dwRemoteAddr))
'                 lstLine.SubItems(4) = ""
                 strTmp = ""
            End With
 
        Next lngCnt
 
    End If
End If
 
End Sub
 

Módulo que devuelve el HostName apartir de una IP

Option Explicit
 
Private mbInitialized As Boolean
Private dictCache As New Dictionary
Private intMaxCacheSize As Integer
 
Const WSADescription_Len = 256
Const WSASYS_Status_Len = 128
 
Const AF_INET = 4&
 
Private Type HOSTENT
  hName As Long
  hAliases As Long
  hAddrType As Integer
  hLength As Integer
  hAddrList As Long
End Type
 
Private Type WSADATA
  wversion As Integer
  wHighVersion As Integer
  szDescription(0 To WSADescription_Len) As Byte
  szSystemStatus(0 To WSASYS_Status_Len) As Byte
  iMaxSockets As Integer
  iMaxUdpDg As Integer
  lpszVendorInfo As Long
End Type
 
Private Declare Function WSAStartup Lib "wsock32" (ByVal VersionReq As Long, WSADataReturn As WSADATA) As Long
Private Declare Function WSACleanup Lib "wsock32" () As Long
Private Declare Function WSAGetLastError Lib "wsock32" () As Long
Private Declare Function gethostbyaddr Lib "wsock32" (addr As Long, addrLen As Long, addrType As Long) As Long
Private Declare Function gethostbyname Lib "wsock32" (ByVal hostname As String) As Long
Private Declare Sub RtlMoveMemory Lib "kernel32" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)
 
'checks if string is valid IP address
Private Function CheckIP(IPToCheck As String) As Boolean
  Dim TempValues
  Dim iLoop As Long
  Dim TempByte As Byte
 
  TempValues = Split(IPToCheck, ".")
 
  If UBound(TempValues) < 3 Then
    Exit Function
  End If
 
  For iLoop = LBound(TempValues) To UBound(TempValues)
    TempByte = TempValues(iLoop)
  Next iLoop
  CheckIP = True
 
End Function
 
'converts IP address from string to sin_addr
Private Function MakeIP(strIP As String) As Long
  Dim vTemp
  Dim lngTemp As Long
  Dim iLoop As Long
 
  vTemp = Split(strIP, ".")
 
  For iLoop = 0 To (UBound(vTemp) - 1)
    lngTemp = lngTemp + (vTemp(iLoop) * (256 ^ iLoop))
  Next iLoop
 
  If vTemp(UBound(vTemp)) < 128 Then
    lngTemp = lngTemp + (vTemp(UBound(vTemp)) * (256 ^ 3))
  Else
    lngTemp = lngTemp + ((vTemp(UBound(vTemp)) - 256) * (256 ^ 3))
  End If
 
  MakeIP = lngTemp
End Function
 
'resolves IP address to host name
Private Function AddrToName(strAddr As String) As String
 
  Dim heEntry As HOSTENT
  Dim strHost As String * 255
  Dim strTemp As String
  Dim lngRet As Long
  Dim lngIP As Long
 
  If CheckIP(strAddr) Then
    lngIP = MakeIP(strAddr)
    lngRet = gethostbyaddr(lngIP, 4, AF_INET)
    If lngRet = 0 Then
      Exit Function
    End If
    RtlMoveMemory heEntry, lngRet, Len(heEntry)
    RtlMoveMemory ByVal strHost, heEntry.hName, 255
    strTemp = TrimNull(strHost)
    AddrToName = strTemp
  End If
 
End Function
 
Public Function AddressToName(strIP As String) As String
    Dim strCache As String
    If mbInitialized Then
        On Error Resume Next
        If dictCache.Exists(strIP) Then
            AddressToName = dictCache(strIP)
        Else
            Err.Clear
            AddressToName = AddrToName(strIP)
            dictCache.Add strIP, AddressToName
            While dictCache.Count > intMaxCacheSize
                dictCache.Remove dictCache.Keys(UBound(dictCache.Items))
            Wend
        End If
    End If
End Function
 
Private Function TrimNull(sTrim As String) As String
  Dim iFind As Long
  iFind = InStr(1, sTrim, Chr(0))
  If iFind > 0 Then
    TrimNull = Left(sTrim, iFind - 1)
  Else
    TrimNull = sTrim
  End If
End Function
 
Private Sub Class_Initialize()
  Dim wsa As WSADATA
  Dim ff As Byte
  Dim strIP As String, strDomain As String
 
  mbInitialized = (WSAStartup(257, wsa) = 0)
  intMaxCacheSize = Val(GetSetting(App.ProductName, "Cache", "MaxSize", 100))
 
  'Read in the cache file
  ff = FreeFile
  On Error Resume Next
  Open GetSetting(App.ProductName, "Cache", "Filename", App.Path & "\cache.dat") For Input As #ff
    While Not EOF(ff)
        Input #ff, strIP, strDomain
        dictCache.Add strIP, strDomain
    Wend
  Close #ff
End Sub
 
Private Sub Class_Terminate()
  Dim ff As Byte
  Dim strKey As Variant
 
  If mbInitialized Then
    WSACleanup
 
    'Save the cache to a file
    ff = FreeFile
    Open GetSetting(App.ProductName, "Cache", "Filename", App.Path & "\cache.dat") For Output As #ff
        For Each strKey In dictCache.Keys
            Print #ff, strKey & "," & dictCache(strKey)
        Next
    Close #ff
  End If
End Sub
 

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estoy utilizando el api GetTcpTable pero nosé como sacarle de ahi el handle para localizar el proceso. arriva dejé mi code pára que lo examines amigo.

lei por ahi que en WinXP, lo que quiero, se consigue con AllocateAndGetTcpExTableFromStack() and AllocateAndGetUdpExTableFromStack().
pero mi sistema es Win7 32bits y esas Api no me funcionan,

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Amigos alguna pista?? busco y busco, no doy con la solucción 
Quiero hacer un programita como TcpView en [VB6]

Solo quiero saber ¿como agregarle el Nombre de Proceso y el PID??  hasta ahora logré lo siguiente..



Ayudaa Please!

MOD EDIT: No hacer triple post.