My second attempt at the same question...

Can someone clarify the precedence of execution for SOAPExtensions?? I have
a security extension which I configure in Web.Config. Works great thanks for
that.
I have another extension which I only want to apply to a couple of web
methods, so I create a SOAPExtensionAttribute so I can decorate the
appropriate web method.

I want the >>second<< extension to execute first (because I need access to
security info from the SOAP messagefor the extension to work.) so I set its
priority to "0". Remember this is the one configured by decorating the
apropriate web methods.

I then set the Group on my security extension (configured in web.config) to
"1" and priority="1".
To me this would imply my >>second<< extension should execute first.
It appears to >>try<< to execute first but there is >>NOTHING<< in the
message stream. I know it executes first because I log details.

OK, so I change the second extension to be configured via web.config,
setting group to "0" and priority="0". This works fine!

Can someone tell me what is going on. I cannot find anything on MSDN to help
me out here.

As always any help greatly appreciated.