Question : Redirecting DNS requests from IE to a local holding page, which then gives the choice to continue to the real intended page

Dear Experts,

Please advise on a possible method to achieve the above.  In short, I wish to redirect requests from users on our LAN (to a shopping website) to a local holding page, which gives them the option to continue to the real site, or select to visit an alternative site.

I was thinking creating a zone on our DNS servers matching the shopping site, but I am not sure how ensure they can continue to the shopping site and browse normally after visiting the holding page.

Thanks for your help!

Answer : Redirecting DNS requests from IE to a local holding page, which then gives the choice to continue to the real intended page

Sorry I need to search for that, but
I've a new Idea in mind, if you could try it (but needs some experiance in asp.net)
1)as I said before you make an access rule in ISA for every one that deny access to those sites and make redirect to your asp.net application page
2) add an exception to that rule if user is for example  "directshppoinguser@yourdomain.com" aftter adding that user to AD with limitted privalages
3)in your page before executing the redirect to original site imporsinate the working thread with this user

in this case even subsequent visits form the same IE sessions will not be intercepted