I'm having some problems in decoding urls on IIS6.
When I click on URL UTF-8 encoded, resulting querystring replace any non english chars with question marks. For example, if you open http://www.qmpeople.com/ you can see a link in the middle of the page http://www.qmpeople.com/tag/%D1%84 containing an UTF-8 char properly encoded . If you click on it, results page shows incorrect querystring "404;http://www.qmpeople.com:80/tag/?" (see upper left corner)
In fact, unicode char has been replaced with a question mark. Why? I'm becoming crazy because I alredy tried a tons of different solutions.
As you can see I use a 404 custom handler to manage all tags and all pages involved use UTF-8
Thank you in advance for your help