Read an XML document with namespaces and import the data by path using DELPHI.

const
NSMY = 'http://my.namspace.com/namespace';
PATH = '/my:myFields/my:myFields_1/my:FieldName_1';

var
text: string;
Doc: DOMDocument;
node:IXMLDOMNode;

begin
Doc:=CreateComObject(CLASS_DOMDocument) AS IXMLDOMDocument2;
Doc.load('c:\testXML\testForm.xml');
Doc.setProperty('SelectionNamespaces', Format('xmlns:my="%s"', [NSMY]));
node := Doc.selectSingleNode(PATH);
Text:=node.Text;
end;

To access a node in the 'my:' namespace by xpath use the units MSXML2_TLB and ComObj.
You can create MSXML2_TLB by importing the type library for MSXMLv3.0.

Delphi code to fetch your own public IP address

function whatismyip(): String;
var anurl: String;
var r:TregExpr;
var myip: string;
begin
anurl := IdHTTP1.Get('http:\\www.whatismyip.com');
r:= TregExpr.Create;
r.Expression := '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';
if r.Exec(anurl) then myip := r.Match[0];
r.Destroy;
whatismyip:=myip;
end;

This snippet requires indy and also regular expressions from http://regexpstudio.com/

There is a version using windows sockets here :-
http://www.delphifusion.com/forum/showthread.php?t=247