Web Service Reference Tool 2.0 problem

I'm trying to use the Web Service Reference Tool 2.0 from the the latest
version of the Office XP Web Service Toolkit (which is using STK 3.0 under
the covers), and I'm having a problem. I'm using it against a web service
that we wrote using .Net. When I try to add a reference to our web service,
and it goes to generate all of the proxy classes, it barfs.

It does successfully parse the WSDL and display all of the methods in the
service. When I click "Add", it starts generating proxy classes (I can see
windows opening in the background). It generates 20 or so classes, then
pops up the message "The Web Service Reference Tool could not generate the
requested code. Any changes that were made to your project have been rolled
back.". It deletes all of the classes it had generated, so I can't tell
where it's actually failing or what the cause is.

Is anybody having similar problems with this tool? Is there any debugging
information that I can look at to identify why the failure is occuring?

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