HOTFIX: A script error occurs in IE6 when you view a Web page that includes a script that is transmitted by using HTTP compression, and the URL that points to the script includes a non-ASCII character
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.
http://support.microsoft.com/default.aspx/kb/924533