Auto login windows security window - vb.net

Question

I try to fill up automatically the name and the password for a windows security window, basically the page is opening after a couple of seconds with the window but the fields for user and password are empty. This is the code I have so far, any help is appreciate. Thank you.
This is where I am now:
Dim oProcess As New Process()
Dim psi As New ProcessStartInfo
psi.FileName = "arp"
psi.Arguments = "-a"
psi.UseShellExecute = False
psi.RedirectStandardOutput = True
psi.WindowStyle = ProcessWindowStyle.Hidden
psi.CreateNoWindow = True
Dim p As Process = Process.Start(psi)
Dim s As String = p.StandardOutput.ReadToEnd()
s = s.Split(" ".ToCharArray)(1)
WebBrowser1.Navigate("http://user:pass#" + (s) + ":34655/")
It works but I get from cmd only the first ip(192.2.2.2), if I don't use the arp command I don't see the ip of the device.
Basically I need to get the ip from this cmd output from third row:
"interface: 192.2.2.2 ----0xb//////
internet address- physical address---type///////
134.45.455.455.4(this ip) mac address dynamic//////
etc etc"/////
Thank you

Answer 1

You need to be more specific.
If this site you are connecting to uses Basic authentication, you are presented with a System InputBox with standard fields and a button control.
If it uses WebForm LogIn authentication, you are presented with a Web Form
with semi-standard Form Elements to fill in.
In the former case, it is quite simple to perform an authentication throu WebRequest/HttpWebResponse or, if you really need to use a WebBrowser control,
to setup its .Navigate property to achieve the same result.
If your case is the latter, since you are using a WebBrowser control to navigate to an URI, you don't really need any PInvoke at all.
Mind that WebBrowser.Document contains the HtmlDocument that describes the HTML page.
It also lets you access all the object that the page defines.
So, if you know in advance which Site you are connecting to (ie, you need to perform this operation
for this one Site only), you can use the .DocumentCompleted Event of your WebBrowser and set
your parameters directly from there:
Consider:
["UserName"], ["Password"], ["LoginButton"]
as the IDs of the Html Elements that represent an <input> Textbox, an <input> Password,
and a <input> Button that forwards the form parameters in a .Click Event .
So, read from the Html Page the IDs of the elements in the form and just insert your values:
In WebBrowser1_DocumentCompleted:
WebBrowser1.Document.All(["UserName"]).SetAttribute("Value", "UserID")
WebBrowser1.Document.GetElementById(["Password"]).SetAttribute("Value", "Password")
WebBrowser1.Document.All(["LoginButton"]).InvokeMember("Click")
I'm using .Document.All and .Document.GetElementById to show that there are two different
methods to accomplish the same task.
If you don't know in advance what the content of the Html Page is, you need to perform a simple parsing of the page (using the HtmlDocument Object), retrieve the elements of the form and then repeat the
previous task.
As I said, you need to be more specific.
If you have questions, comment and I will edit my answer.