Enabling / Disabling network card exception

[kevinn7]

Below is my code which enables and disables all network cards in my PC.

It works fine but when I execute this code on a normal User Account, i get the exception " Unable to read beyond the end of the stream" .

Im also aware that as a normal user, one will not be able to enable and disable network cards. I tried changing the settings in gpedit.msc bt it still doesnt work.

How do I grant permission to the user so that he wud b able to disable and enable the network card using the code below?

 Dim strComputer As String
        Dim coladapters As Object
        strComputer = "."
        objWmiService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
        coladapters = objWmiService.Execquery("Select * from Win32_NetworkAdapter Where NetEnabled='false'")
        For Each Adapter In coladapters
            Adapter.enable()
        Next

[Plater]

You might be able to change the user you use to get into the WMI calls.
(Is there a reason you are not using the .NET WMI implimentation for this?

[kevinn7]

ok im kinda lost.. i thought i was? lol

mind showing me how it'll be like if i were to use the .net wmi?

[Plater]

Def not. Take a look at the System.Manageme nt namespace. (You will have to add the assembly reference, it doesn't come added)

I threw this together from what I read on msdn:
[code=vbnet]
Public Shared Function DoStuff() As Integer
Try
Dim classInstance As New ManagementObjec t("root\CIMV2", "Win32_NetworkA dapter",Nothing )

Dim outParams As ManagementBaseO bject = classInstance.I nvokeMethod("En able", Nothing, Nothing)
'Dim outParams As ManagementBaseO bject = classInstance.I nvokeMethod("Di sable", Nothing, Nothing)

' List outParams
Console.WriteLi ne("Out parameters:")
Console.WriteLi ne("ReturnValue : {0}", outParams("Retu rnValue"))

Catch err As ManagementExcep tion
MessageBox.Show ("An error occurred while trying to execute the WMI method: " & err.Message)
End Try
End Function
[/code]

[kevinn7]

nice.. ill give tht a try. thx alot. yr help is much appreciated. =)

[Plater]

I also recommend the "WMI Code Creator" for fiddling with WMI. It has a little gui that creates the code for you, let you see how it all works.