If you get the following error when trying to run a search on a WSS site:
Your search cannot be completed because this site is not assigned to an indexer.
Contact your administrator for more information.
or in danish
Din søgning kan ikke fuldføres, da dette websted ikke er tildelt et indekseringsprogram.
Kontakt administratoren for at få flere oplysninger.
You’ll need to set the indexer on the content database of the site collection. This is done by going to the Central Adminstration > Application Management > Content Databases. Then choose the database of your site and set the index server.
This is the same thing with the Search Server 2008 Express added.
Thank you Paul Wu