HTTPwebrequest Error

[SRN]

I have some code to connect to a website and pull some content out of the
HTML. I've verified that the 2 URLs I'm using are perfectly fine in
Internet Explorer and both of them return results correctly.

The first URL simply visits the main page.
The first URL I try takes a while but eventually comes back with the correct
results.
http://125.17.18.198/scripts/tibusr.dll


The second URL is list the menus page that is get & validate the userid & Password from first URL.It is working fine in internet explorer.
But it is not working in application
It didn't return any error.it return the same content again the first page with javascript message.
<script>alert('This site requires Microsoft Internet Explorer 4.01 or higher.');</script>

but if i use the same URL in browser it returns perfectly.
http://125.17.18.198/scripts/tibusr.dll?sessionid=41795362304249916784226821653 4000478&filer=&trigger=&data=&AuthLogonUser=tibthe me&AuthLogonPWD=thesys123&trig_1.x=41&trig_1.y=16

Following are my coding.

Private Function FnGetWebContent(ByVal URL As String) As String
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)

Try
'Get the data as an HttpWebResponse object
Dim resp As HttpWebResponse = req.GetResponse()

'Convert the data into a string (assumes that you are requesting text)
Dim sr As New StreamReader(resp.GetResponseStream())

Dim results As String = sr.ReadToEnd()
sr.Close()
Return results
' ... work with results ...
Catch wex As WebException
'Something went awry in the HTTP request!
End Try


End Function



SRN