need Help going from a static ip back to dhcp

[JForgie]

I already have a code set up to check a combo box for a value and change the ip , subnet, and gateway depending on the value.
What I want to do is reset the lan back to the dhcp when the program is closed.
I have searched and have not been able to find how to do this.

Or maybe I am explaining it incorrectly.
under the tcp/ip properties I am trying to set it back to "obtain Ip address automatically"

I know how to use netsh but I don't want to call a batch.

Any takers?

[pcuser]

lol, I just posted this in another thread less than an hour ago.

This example uses an undocumented function in iphlpapi.dll called "SetAdapterIPAddress".

http://www.msfn.org/board/set-ip-add...70524.html&hl=

Read the comments at the top of the code to learn how to use it.

[JForgie]

Looks good, but im still a tad new at this and Im trying to pick out just what I need so let me see if I get this right?
All i am trying to do is restore dhcp with this button click

This goes in a module?
private Declare Function SetAdapterIPAddress Lib "Iphlpapi" Alias "#135" (ByVal dwDHCP As Long) As long

This goes in the button
Dim MyGUID As String
Dim DoDHCP As Integer
Dim MyIP As String
Dim MyNetMask As String
Dim MyGateway As String
Dim MyDNS As String

DoDHCP = 1
MyIP = vbNull
MyNetMask = vbNull
MyGateway = vbNull

SetKeyValue "SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\" & MyGUID, "NameServer", "", REG_SZ
DoIT = SetAdapterIPAddress(MyGUID, DoDHCP, MyIP, MyNetMask, MyGateway)


Forgive me for my ignorance if I have missed something.
oh also I need the whole mod registry?

modRegistry
CODE
Option Explicit

Public Const REG_SZ As Long = 1
Public Const REG_DWORD As Long = 4

Public Const HKEY_CLASSES_ROOT = &H80000000
Public Const HKEY_CURRENT_USER = &H80000001
Public Const HKEY_LOCAL_MACHINE = &H80000002
Public Const HKEY_USERS = &H80000003

Public Const ERROR_NONE = 0
Public Const ERROR_BADDB = 1
Public Const ERROR_BADKEY = 2
Public Const ERROR_CANTOPEN = 3
Public Const ERROR_CANTREAD = 4
Public Const ERROR_CANTWRITE = 5
Public Const ERROR_OUTOFMEMORY = 6
Public Const ERROR_ARENA_TRASHED = 7
Public Const ERROR_ACCESS_DENIED = 8
Public Const ERROR_INVALID_PARAMETERS = 87
Public Const ERROR_NO_MORE_ITEMS = 259

Public Const KEY_QUERY_VALUE = &H1
Public Const KEY_SET_VALUE = &H2
Public Const KEY_ALL_ACCESS = &H3F

Public Const REG_OPTION_NON_VOLATILE = 0

Declare Function RegCloseKey Lib "advapi32.dll" _
(ByVal hKey As Long) As Long
Declare Function RegCreateKeyEx Lib "advapi32.dll" Alias _
"RegCreateKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, _
ByVal Reserved As Long, ByVal lpClass As String, ByVal dwOptions _
As Long, ByVal samDesired As Long, ByVal lpSecurityAttributes _
As Long, phkResult As Long, lpdwDisposition As Long) As Long
Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias _
"RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, _
ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As _
Long) As Long
Declare Function RegQueryValueExString Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, ByVal lpData _
As String, lpcbData As Long) As Long
Declare Function RegQueryValueExLong Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, lpData As _
Long, lpcbData As Long) As Long
Declare Function RegQueryValueExNULL Lib "advapi32.dll" Alias _
"RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As _
String, ByVal lpReserved As Long, lpType As Long, ByVal lpData _
As Long, lpcbData As Long) As Long
Declare Function RegSetValueExString Lib "advapi32.dll" Alias _
"RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, _
ByVal Reserved As Long, ByVal dwType As Long, ByVal lpValue As _
String, ByVal cbData As Long) As Long
Declare Function RegSetValueExLong Lib "advapi32.dll" Alias _
"RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, _
ByVal Reserved As Long, ByVal dwType As Long, lpValue As Long, _
ByVal cbData As Long) As Long

Public Function SetValueEx(ByVal hKey As Long, sValueName As String, _
lType As Long, vValue As Variant) As Long
Dim lValue As Long
Dim sValue As String
Select Case lType
Case REG_SZ
sValue = vValue & Chr$(0)
SetValueEx = RegSetValueExString(hKey, sValueName, 0&, _
lType, sValue, Len(sValue))
Case REG_DWORD
lValue = vValue
SetValueEx = RegSetValueExLong(hKey, sValueName, 0&, _
lType, lValue, 4)
End Select
End Function

Function QueryValueEx(ByVal lhKey As Long, ByVal szValueName As _
String, vValue As Variant) As Long
Dim cch As Long
Dim lrc As Long
Dim lType As Long
Dim lValue As Long
Dim sValue As String

On Error GoTo QueryValueExError

' Determine the size and type of data to be read
lrc = RegQueryValueExNULL(lhKey, szValueName, 0&, lType, 0&, cch)
If lrc <> ERROR_NONE Then Error 5

Select Case lType
' For strings
Case REG_SZ:
sValue = String(cch, 0)

lrc = RegQueryValueExString(lhKey, szValueName, 0&, lType, _
sValue, cch)
If lrc = ERROR_NONE Then
vValue = Left$(sValue, cch - 1)
Else
vValue = Empty
End If
' For DWORDS
Case REG_DWORD:
lrc = RegQueryValueExLong(lhKey, szValueName, 0&, lType, _
lValue, cch)
If lrc = ERROR_NONE Then vValue = lValue
Case Else
'all other data types not supported
lrc = -1
End Select

QueryValueExExit:
QueryValueEx = lrc
Exit Function

QueryValueExError:
Resume QueryValueExExit
End Function

[JForgie]

Got this to work for me.

On Error Resume Next
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\CIMV2")
Set colItems = objWMIService.ExecQuery( _
"SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled=TRUE")

For Each objItem In colItems
intIndex = objItem.Index
Set objNic = objWMIService.Get("Win32_NetworkAdapter.DeviceID=" & intIndex)

strNetConnectionStatus = objNic.NetConnectionStatus

' a status of 2 or 9 means "connected" so we only get the nics that are online.
If (strNetConnectionStatus = 2) Or (strNetConnectionStatus = 9) Then
' get the nic by index
Set objShare = objWMIService.Get("Win32_NetworkAdapterConfiguration.Index='" & intIndex & "'")

Set objOutParams = objWMIService.ExecMethod("Win32_NetworkAdapterConfiguration.Index='" & intIndex & "'", "EnableDHCP")

Wscript.echo "Out Parameters: "
Wscript.echo "ReturnValue: " & objOutParams.ReturnValue
End If
Next