I realize it's a discovery document but

http://localhost/service2.asmx?DISCO

gives me

<discovery>
<contractRef ref="http://localhost/service2.asmx?wsdl"
docRef="http://localhost/service2.asmx"/>
<soap address="http://localhost/service2.asmx" binding="q1:Service2Soap"/>
<soap address="http://localhost/service2.asmx" binding="q2:Service2Soap12"/>
</discovery>

which tells me nothing.  So what is it supposed to be telling me?  Or is
it supposed to be telling the computer something?

Now if I just type in

http://localhost/service2.asmx

I get a nice looking page that shows me the two web methods I have
exposed and allows me to test them--though I must say it still tells me
very little about them.

If I type in

http://localhost/service2.asmx?WSDL

I get well a lot of xml stuff (I'll put it at the bottom of the message)
and most I can identify since I wrote the services but I'd be hard
pressed to read this stuff from someone else's web service and tell you
what it does.  What is all this for?

Can someone give me an overview of what the difference between these
documents is and what uses each?  Is a human supposed to read this stuff
and understand it?

<wsdl:definitions targetNamespace="http://tempuri.org/">
−
    <wsdl:types>
−
    <s:schema elementFormDefault="qualified"
targetNamespace="http://tempuri.org/">
−
    <s:element name="GoodbyeWorld">
<s:complexType/>
</s:element>
−
    <s:element name="GoodbyeWorldResponse">
−
    <s:complexType>
−
    <s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="GoodbyeWorldResult"
type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
−
    <s:element name="GoodbyeCJ">
<s:complexType/>
</s:element>
−
    <s:element name="GoodbyeCJResponse">
−
    <s:complexType>
−
    <s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="GoodbyeCJResult"
type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>
−
    <wsdl:message name="GoodbyeWorldSoapIn">
<wsdl:part name="parameters" element="tns:GoodbyeWorld"/>
</wsdl:message>
−
    <wsdl:message name="GoodbyeWorldSoapOut">
<wsdl:part name="parameters" element="tns:GoodbyeWorldResponse"/>
</wsdl:message>
−
    <wsdl:message name="GoodbyeCJSoapIn">
<wsdl:part name="parameters" element="tns:GoodbyeCJ"/>
</wsdl:message>
−
    <wsdl:message name="GoodbyeCJSoapOut">
<wsdl:part name="parameters" element="tns:GoodbyeCJResponse"/>
</wsdl:message>
−
    <wsdl:portType name="Service2Soap">
−
    <wsdl:operation name="GoodbyeWorld">
<wsdl:input message="tns:GoodbyeWorldSoapIn"/>
<wsdl:output message="tns:GoodbyeWorldSoapOut"/>
</wsdl:operation>
−
    <wsdl:operation name="GoodbyeCJ">
<wsdl:input message="tns:GoodbyeCJSoapIn"/>
<wsdl:output message="tns:GoodbyeCJSoapOut"/>
</wsdl:operation>
</wsdl:portType>
−
    <wsdl:binding name="Service2Soap" type="tns:Service2Soap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
−
    <wsdl:operation name="GoodbyeWorld">
<soap:operation soapAction="http://tempuri.org/GoodbyeWorld"
style="document"/>
−
    <wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
−
    <wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
−
    <wsdl:operation name="GoodbyeCJ">
<soap:operation soapAction="http://tempuri.org/GoodbyeCJ" style="document"/>
−
    <wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
−
    <wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
−
    <wsdl:binding name="Service2Soap12" type="tns:Service2Soap">
<soap12:binding transport="http://schemas.xmlsoap.org/soap/http"/>
−
    <wsdl:operation name="GoodbyeWorld">
<soap12:operation soapAction="http://tempuri.org/GoodbyeWorld"
style="document"/>
−
    <wsdl:input>
<soap12:body use="literal"/>
</wsdl:input>
−
    <wsdl:output>
<soap12:body use="literal"/>
</wsdl:output>
</wsdl:operation>
−
    <wsdl:operation name="GoodbyeCJ">
<soap12:operation soapAction="http://tempuri.org/GoodbyeCJ"
style="document"/>
−
    <wsdl:input>
<soap12:body use="literal"/>
</wsdl:input>
−
    <wsdl:output>
<soap12:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
−
    <wsdl:service name="Service2">
−
    <wsdl:port name="Service2Soap" binding="tns:Service2Soap">
<soap:address location="http://localhost/service2.asmx"/>
</wsdl:port>
−
    <wsdl:port name="Service2Soap12" binding="tns:Service2Soap12">
<soap12:address location="http://localhost/service2.asmx"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>