Hi,
if anyone is interested, i have found the solution for those type of links: You can generate a 404 by catching the string.
RewriteEngine On
RewriteCond %{REQUEST_METHOD} GET
RewriteCond %{QUERY_STRING} (^|&)your bad link
RewriteRule .* /your 404 link#$1 [NE,R]
I hope that will spare somebody the time i needed..
Cheers
