My question is not how to make it transmit .wmas.
My question is how to get maximum uptime out of my server, and perhaps suggesting that a sanity check function be implemented.
An analogy: I have a wood chipper. I can feed it all the wood I want, and it happily puts out wood chips; but if I feed it metal, it chokes up and dies. The best-designed chipper would detect that the engine's cut out and the intake is clogged; it would restart the engine, put it into gear backwards to clear the jam, then go back to working as normal.
As I said, most server programs detect errors in themselves and respond by closing and restarting.
Since operator error is inevitable (after all, there are over a dozen different people who have access to the server), my focus is on keeping the server from jamming for more than a few moments and without myself or the other admins booting the DJ and asking him to reconnect.
Basically I'm saying that while SHOUTcast is pretty cool, and pretty useful, it's also got a pretty significant flaw. And it's not (to my knowledge) open source, so there's nothing I can do to fix it myself.