Jay, <div class="gmail_quote">On Fri, Jun 8, 2012 at 1:06 AM, Jay McCarthy <<a href="mailto:jay.mccarthy@gmail.com" target="_blank">jay.mccarthy@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> If you write in #lang web-server/base then you will get serialization continuations, but none of the Web libraries. The transformation isn't really Web-specific. </blockquote><div> I could not use #lang web-server/base on Racket v5.2.1 (Windows). #lang web-server works (probably bringing in more than the necessary). I've replaced "let/cc" and "let/ec" with "call-with-serializable-current-continuation", and now I am getting this error: current-continuation-marks: no corresponding prompt in the continuation: #<continuation-prompt-tag:web> I tried introducing uses of "call-with-continuation-prompt" and "(make-continuation-prompt-tag 'web)" out of luck. I don't really understand what the error means. Can I use "serialize" from "racket/serialize" on continuations made with "call-with-serializable-current-continuation"? Thanks, </div></div> Rodolfo Carvalho