Server variables not passed on to custom 404 handler?

Hi,

I have a large, old classic asp site with many problems. While attempting to sort out 404 responses I wrote a simple custom handler to send me an email for each 404 incident.

However it appears that IIS 7 is not passing on various server variables to my handler.   I get very few of the server variables, and http_referer is always missing - which is the most critical value to assist in tracing, especially from external websites.

I saw a reference to a hotfix, but it seems to have disappeared - could not locate anything but references about it.

I also found a comment that the server variables may not (yet) be available at the time that the handler gets control (?).

Any comments will be appreciated!