HTTP Error 404.0 - Not Found

[ravininave]

I'm using Errorhandler in my web application in vs 3.5

But when anyone enters www.myurl.com/abc or www.myurl.com/wrongurl.htm or html

he got error
HTTP Error 404.0 - Not Found

So, I changed some of setting in my web.config and global.asax
Here is my code for both.

web.config

<customErrors mode ="On" defaultRedirect ="~/Errorpage.htm">
<error statusCode ="404" redirect ="~/Errorpage.htm"/>
</customErrors>

<system.webServer><validation validateIntegratedModeConfiguration="false"/>
<httpErrors errorMode ="Custom">
<remove statusCode ="404" subStatusCode ="-1"/>
<error statusCode ="404" path="~/Errorpage.htm" responseMode ="ExecuteURL"/>
</httpErrors>

</system.webServer>


global.asax

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)

Dim lastError As Exception = Server.GetLastError()
If (lastError IsNot Nothing AndAlso lastError.Message <> "File does not exist.") AndAlso (lastError.Message <> "Thread was being aborted") AndAlso (lastError.Message <> "The client disconnected.") Then
Dim errMessage As String = ""
If (TypeOf (lastError) Is HttpException) Then
Dim checkException As HttpException = DirectCast(lastError, HttpException)
Dim httpErrorCode As Integer = checkException.GetHttpCode()
Server.ClearError()

Select Case httpErrorCode
Case 401
errMessage += "You are not authorized to view this page."
Response.Redirect("~/Errorpage.htm")
Exit Select
Case 403
errMessage += "You are not allowed to view that page."
Response.Redirect("~/Errorpage.htm")
Exit Select
Case 404
errMessage += "The page you have requested can't be found."
Response.Redirect("~/Errorpage.htm")
Exit Select
Case 500
errMessage += "The server can't fulfill your request."
Response.Redirect("~/Errorpage.htm")

Exit Select
Case Else
errMessage += "The server has experienced an error."
Response.Redirect("~/Errorpage.htm")
Exit Select
End Select
Else
Server.ClearError()
Response.Redirect("~/Errorpage.htm")
End If
Else
Server.ClearError()
Response.Clear()
End If
End Sub


Now I'm not getting 404 Error but It shows me blank page
Means if there is any error then it properly goes to errorpage.htm
But for 404 error it goes to blank page.
My errorpage.htm is in root directory itself.
What could be the cause.?

[sagarpassion]

Change the setting in IIS. remove your error page or change setting off. you will get the error.