Allow special charcters in IIS request URLs

Currently, when I try to hit certain pages of my site via something like http://www.domain.com/< (which is a valid URL), I get a blank page with the text "Bad Request" on it (and nothing else). This happens with both the escaped and unescaped version of the U开发者_运维技巧RL.

I'm fairly certain this is due to IIS6 not liking the < character (which, in general, is valid). Is there a way to stop IIS6 from filtering these characters and giving me this error page?

(I've found similar solutions for IIS7, but nothing has worked in IIS6 so far.)

UPDATE: The URL is being transformed already, ie. hitting domain.com/%3C will also give the "Bad Request" page.

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Not sure if this will work, but this got me out of a similar jam caused by design types forgetting key parts of query strings. Sounds like you might have a similar issue. Anyhow, try making a virtual directory called %3c and then having that redirect to where appropriate.

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RFC 1738:

Thus, only alphanumerics, the special characters "$-_.+!*'(),", and reserved characters used for their reserved purposes may be used unencoded within a URL.

< transforms to %3C

https://stackoverflow.com/<