The one aspect I do not understand well is the THROW command - the help docs are light on this and the feature came out after the Hackers guide (I am guessing as no reference in it).

Can anyone give an example or explain further? In the framework I am using (VMP), they use ON ERROR as the top level error handler (and I cannot change this). Would I use THROW to pass something up to that error handler?

Thx.
Albert