<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope
 xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
>
<SOAP-ENV:Body>

<ns1:echoStringParam xmlns:ns1="http://soapinterop.org/xsd">
Hello World!
</ns1:echoStringParam>

</SOAP-ENV:Body>
</SOAP-ENV:Envelope>