Following on from http://www.dualbotic.com/DasBlog/Using+Typed+Datasets+In+VBNet.aspx

I have been using the typed datasets for a few months now and have learnt more about their behaviour. If you alter the stored procedure you used to generate your dataset there is every chance your application will runtime error. It is possible avoid recompiling your application if say you have added a column to the query in the sp then simply refreshing your typed dataset in VB.NET and deploying the newly generated XSD file should do the trick. Of course if you have removed a column that your code was referencing your screwed but the same would normally be true even if you weren't using TD's.