I seem to recall it mentioned elsewhere that it was possible to use Tier 1 commands inside a Tier 2 app. If this is correct would such an app be compiled as native code or would it use the player?

Jason

The 'command sets' from t1, I suspect will be the available in the t2 sdk. T2 builds would be native. Which is how such products generally work.

To make an analogy, T1 is basically DBPRO, t2 = DGK