Question : ASP.NET - What page did I come from?

In an ASP.NET application (C#)
I'm working with a site map bread crumb control that needs to have the last page in the trail be a link back to that page.  I've been trying to accomplish that so far by using Request.UrlReferrer.  This works fine under normal circumstances, but I'm worried about it failing in other circumstances.

For instance, when I come to a page with this control on it by using javascript window.loacation = "path"; the urlReferrer is null.  I've thought about trying some work around where I add an anchor element to the page using the javascript and then force a click event on that anchor, but I would rather not have to write such sloppy code like that if I can avoid it.

Are there any best practices that should be implemented in a situation like this to help a page know where the user was coming from before they came to that page?

Thanks

Answer : ASP.NET - What page did I come from?

The Public Folder (PF) info in AD will be in the Configuration Container, under Services -> Microsoft Exchange -> [OrgName] -> Administrative Groups -> Exchange Administrative Group (FYDIBOHF23SPDLT) -> Databases -> [PF Database].

If you highlight and delete the entire object under the Databases node that corresponds to the dead server Exchange will forget all about it.  Good luck.