There is some problem with pretty permalinks of wordpress on my server.
My permalink structure is :
/index.php/%year%/%monthnum%/%postname%/
it ignores the unicode characters on the URL.
for example, if I use www.mydomain.com/2012/01/سلام , wordpress ignores the unicode part (سلام) and shows the www.mydomain.com/2012/01/ content. (archive page)
and if I use www.mydomain.com/tag/وردپرس , it shows 404 page. I think because there isn't www.mydomain.com/tag/ page.
but everything is correct with english names. for example, these pages can show correctly: www.mydomain.com/2012/01/hello-world www.mydomain.com/tag/wordpress
My server is IIS6 Windows 2003 on a Shared hosting without URL rewriting (I'm using that type of permalink structure because of this) Wordpress 3.3.1
This question is not same as Wordpress is ignoring Unicode Chars in URL because that question asks about IIS7 and Windows server 2008, but I'm asking about IIS6 and Windows Server 2003.