æ ø å og msnbot

Hej

Jeg har et problem når jeg får besøg af msnbot. (ex.: msnbot-157-55-35-105.search.msn.com)
Den fylder simpelthen min errorlog op da den forsøger med nogle besynderlige url'er som jeg ikke ved hvor den har fra.
Det giver fejlen: "The specified path, file name, or both are too long"

F.eks. kan en url se sådan ud:
/herretoej/huer-handsker/b%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%A0%C3%A2%E2%82%AC%E2%84%A2%C3%83%C6%92%C3%A2%E2%82%AC%C2%A0%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%A2%E2%80%9E%C2%A2%C3%83%C6%92%C3%86%E2%80%99%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%82%C2%A0%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%82%AC%C5%A1%C3%82%C2%AC%C3%83%C2%A2%C3%A2%E2%82%AC%C5%BE%C3%82%C2%A2%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%A0%C3%A2%E2%82%AC%E2%84%A2%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%82%AC%C5%A1%C3%82%C2%AC%C3%83%E2%80%9A%C3%82%C2%A0%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%9A%C3%82%C2%A2%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%85%C2%A1%C3%83%E2%80%9A%C3%82%C2%AC%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%85%C2%BE%C3%83%E2%80%9A%C3%82%C2%A2%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%A0%C3%A2%E2%82%AC%E2%84%A2%C3%83%C6%92%C3%A2%E2%82%AC%C2%A0%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%A2%E2%80%9E%C2%A2%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%9A%C3%82%C2%A2%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%85%C2%A1%C3%83%E2%80%9A%C3%82%C2%AC%C3%83%C6%92%C3%A2%E2%82%AC%C2%A6%C3%83%E2%80%9A%C3%82%C2%A1%C3%83%C6%92%C3%86%E2%80%99%C3%83%E2%80%A0%C3%A2%E2%82%AC%E2%84%A2%C3%83%C6%92%C3%82%C2%A2%C3%83%C2%A2%C3%A2%E2%82%AC%C5%A1%C3%82%C2%AC%C3%83%E2%80%A6%C3%82%C2%A1%C3%83%C6%92%C3%86%E2%80%99%C3%83%C2%A2%C3%A2%E2%80%9A%C2%AC%C3%85%C2%A1%C3%83%C6%92%C3%A2%E2%82%AC%C5%A1%C3%83%E2%80%9A%C3%82%C2%A4rna_1228.aspx

Denne url kan jeg slet ikke se skulle kunne give et korrekt svar uanset hvordan, da produkt-id'et 1228 slet ikke eksisterer hos os.

Har I nogen ide om hvordan man forhindrer at få disse besøg uden at blokere for msnbot?