Error al conectar a Oracle

[jhernanp]

Me conecto a oracle de la siguiente forma:

Imports System.Data.OleDb
Imports System.Data
Imports System.Web.UI.HtmlControls
Public Class Registro
Inherits System.Web.UI.Page
Dim cora As New OleDbConnection ("Provider=MSDAORA.1;Password=hsac;User
ID=hsac;Data Source=INTRANET_192.168.201.14")
End Sub

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
cora.Open()
cora.Close()
End Sub

al realizar esto me sale el siguiente error:

Error de servidor en la aplicación '/ncconformida'.
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Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation. Provider is unable to function until these components are installed.

espero puedan ayudarme...