PDF activeX Component Reference in ASP.NET

Heya everyone,
At the moment, I'm trying to open Acrobat on the client side (not server side) to manipulate PDF's. I'm using Acrobat 7 and asp.net on Windows XP... The problem is that I keep receiving the same error message...
"Cannot create ActiveX component."
I'm using the following code to open Acrobat...

Dim AVApp As Acrobat.CAcroApp

AVApp = CreateObject("AcroExch.App")

AVApp.Show()

I've included the reference but still get the same error message?
Could anyone please tell me what I'm doing wrong?


Thanking you in advance
Karl