Server.TransferRequest is not preserving HttpContext.Items

I've just updated my ASP.Net code from HttpContext.RewritePath(targetPath) to use the .Net 3.5 function: HttpContext.Server.TransferRe开发者_运维技巧quest(targetPath,true)

However, I now no longer have any of the custom HttpContext.Items that I added, before the transfer.

Anyone have any ideas as to how I overcome this?

According the documentation, it preserves the querystring and Form collection, but it says nothing about context items. I'd say that you'll have to send them in other way: querystring or session.