rewriterule to prevent 500 internal error with accented Characters in url

Question

I got an unsolved problem maybe a basic one but i dont really find any answer. My problem is with all accent characters in the url,

I got an 500 error(Error Code: 500 Internal Server Error. The request was rejected by the HTTP filter. Contact the server administrator. (12217)).

for instant when I search "blé", in my url i got: /content/search?SearchText=blé and the result is 500 error, In my blog keywords: /content/keyword/blé : (result is 500 error).

I have created a directory out of my website folder and i have created an alias from my website to this directory. www.mysite.com/directory If i put a file with an accented name the result is the same!

Can I use a rewriterule to change all accented words to non-accented or can i make my url accept these accents?

I really need help and would appreciate if anyone can just help me.

Answer 1

This looks like issue on TMG/ISA firewall. On publishing rule you have to enable high bit character (right click on publishing rule, configure HTTP, general tab).