One day further...

I think, the point is just not implemented.

As the namespace prefix is given as attribute in the response (see xsi::type="tns:EnvelopeN"):

<verbatim>
<soap:Envelope


  <soap:Body>
    <tns:GetServerInfoResponse>
      <Result xsi:type="tns:MapServerInfo">
        <Name>Layers</Name>
        <Description></Description>
        <FullExtent xsi:type="tns:EnvelopeN">
          <XMin>-8883833.3022622615</XMin>
</verbatim>

it is not translated by tdom. How should tdom know, that there is a prefix to translate within an attribute?

So, I suppose the functionality is just missing.

I suppose, the issue is here:

<verbatim>
proc ::WS::Utils::convertTypeToDict {mode serviceName node type root {isArray 0}} {
    ...
                    if {$isAbstract && [$item hasAttributeNS type]} {
                        # partType is now tns::EnvelopeN
                        set partType [$item getAttributeNS type]
                        # The type attribute is removed from the snippet.
                        # So, it is not handled in the loop below.
                        $item removeAttributeNS type
                        ...
                    }
                    ...
                    dict set results $partName $valueAttr [convertTypeToDict $mode $serviceName $item $partType $root]
</verbatim>

After the abstract type is resolved, an eventual namespace prefix should be detected in partType and replaced by the tclws prefix.

For that, the Envelope element should be analysed and a table should be build:

<verbatim>
<soap:Envelope


</verbatim>

This should be done somewhere here:

<verbatim>
proc ::WS::Client::parseResults {serviceName operationName inXML} {
    ...
    $doc selectNodesNamespaces $xns
</verbatim>

There, we have the list of namespaces from the WSDL parse.

I don't know now how to transport this table to recursive function "::WS::Utils::convertTypeToDict", but this will come with implementation try.

Any thoughts welcome. I will hopefully soon try to implement this idea.

Thank you,
Harald