You will need to post your question in the terms the rest of us use and
understand. "Contact book" means nothing to anyone but you, for example. You
will need to provide a more accurate description of what you are doing and
what you are seeing. Perhaps you should review the posting guidelines so you
can create a post which someone can understand:
http://support.microsoft.com/?id=555375

Signature
Russ Valentine
[MVP-Outlook]
>I am finding unknown contacts in my contact book, some with strange
>symbols,
> often with a URL with "buythisblog" in it, etc. I'm not sure how they are
> being added. How do I prevent this? Is there a setting? I have searched
> all
> the tools options. Office Outlook 2007