Free en-GB dictionary for spell check in Silverlight

I'm trying to use the Vectorlight spell checker for Silverlight. The demo code comes with the en-US.dic file, but I'm trying to find a compatible one for British English.

I have found one here but it doesn't work. The format seems similar to the en-US one, but it just doesn't work (i.e. it doesn't suggest any 开发者_Python百科words).

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Answering my own question...

According to a reply on the VectorLight forum you can use the en-GB dictionary that comes with the NetSpell project on SourceForge.