SP 3.0.4 IIS module and handlerURL processing

[Rod Widdowson]

Things have moved on overnight but for the record...

> In the case I’m working on, there are multiple application overrides, each with their own handler in the appropriate path. 

I was afraid that that would occur.  The plan here was that one would specify a "wildcard" for handlerPrefix, which for a path prefix would be '/' (which matches every path).  

That is to say:
	handlerPrefix="/"

However handlerPrefix (which we were careful to not document) will be deprecated away in the next minor release, it was an purely there as an optimization and has cost more time than it was ever worth.