diff -Nuar nessus-plugins-orig/scripts/iis_anything_idq.nasl nessus-plugins/scripts/iis_anything_idq.nasl
--- nessus-plugins-orig/scripts/iis_anything_idq.nasl	2004-11-26 11:20:46.000000000 +0100
+++ nessus-plugins/scripts/iis_anything_idq.nasl	2004-11-26 14:03:35.000000000 +0100
@@ -82,6 +82,7 @@
    r = http_recv(socket:soc);
    http_close_socket(soc);
    str = egrep( pattern:"^<HTML>", string:r ) - "<HTML>";
+   str = tolower(str);
    if ( egrep(pattern:"[a-z]\:\\.*anything", string:str) )
       security_warning( port:port );
    }
