>I'll leave it up to you to test it and adjust it
>

>(\b(((((https?)|(ftps?))://|www\.))(((((\d)|(\d{2})|(([01](\d{2}))|(2[0-4](\d))|(25[0-5])))\.){3}((\d)|(\d{2})|(([01](\d{2}))|(2[0-4](\d))|(25[0-5]))))|(((([\w-_]|((%%)|(%[0-9A-Z]{2})))*([a-zA-Z])([\w-_]|((%%)|(%[0-9A-Z]{2})))*)\.)+(([\w-_]|((%%)|(%[0-9A-Z]{2})))*([a-zA-Z])([\w-_]|((%%)|(%[0-9A-Z]{2})))*)))/?)(((((((((%%)|(%[0-9A-Z]{2}))|[^ ()#?^&`{}|\[\]\x22<>\\])|([()]))}\.)+/)*)?((((((%%)|(%[0-9A-Z]{2}))|[^ ()#?^&`{}|\[\]\x22<>\\])|([()]))+\.)*((((%%)|(%[0-9A-Z]{2}))|[^ ()#?^&`{}|\[\]\x22<>\\]))+))?((([?#][^?# ]+)*)?))\b)
>

>
>
>Test and pattern builder program - you'll need the RegEx pattern builder download#37200 and topological sort download#37199
>
>

>
>using System;
>using System.Collections.Generic;
>using System.Linq;
>using System.Text;
>
>using System.Text.RegularExpressions;
>using System.IO;
>
>using GregoryAdam.Base.Text.RegEx;
>
>namespace BaseTest
>{
>	public class UrlTest
>	{
>		static void Main()
>		{
>			string pattern = RegexPatternBuilder.Construct(Definitions, "<url>");
>			Console.WriteLine(pattern);
>			
>			foreach ( string s in TestCases )
>			{
>				Console.WriteLine("{0}", s);
>				var matches = Regex.Matches(s, pattern, RegexOptions.Multiline);
>
>				foreach( var match in matches)
>					Console.WriteLine("found «{0}»", match);
>
>			}
>			Console.ReadLine();
>
>
>
>		}
>		static string Definitions = @"
><url>			\b<server>(<segment>?(<query>?))\b
>
><server>			<serverIntro><serverBody>/?
><serverIntro>		(((https?)|(ftps?))://|www\.)
><serverBody>		<ip>|<serverWords>
><ip>				(<ipPart>\.){3}<ipPart>
><ipPart>			<ip1>|<ip2>|<ip3>
><ip1>				\d
><ip2>				\d{2}
><ip3>				([01]<ip2>)|(2[0-4]<ip1>)|(25[0-5])
><serverWords>		(<serverWord>\.)+<serverWord>
><serverWord>		<serverChar>*<alphaChar><serverChar>*
><serverChar>		[\w-_]|<CharEscaped>
><alphaChar>			[a-zA-Z]
>
>
>* 
><segment>			<segmentBody>?<segmentTail>
><segmentBody>		((<segmentChar>}\.)+/)*
><segmentTail>		(<segmentChar>+\.)*(<segmentCharNoParens>)+
>
><segmentCharNoParens>	<CharEscaped>|[^ ()#?^&`{}|\[\]\x22<>\\]
><CharEscaped>		(%%)|(%[0-9A-Z]{2})
><segmentChar>		<segmentCharNoParens>|<parens>
>
><parens>			[()]
><query>				([?#][^?# ]+)*
>";
>		static string[] TestCases = 
>		{	@"http://msdn.microsoft.com/en-us/library/", 
>			@"http://msdn.microsoft.com/en-us/library/aa172799SQL.80.aspx",
>			@"(http://msdn.microsoft.com/en-us/library/aa172799SQL.80.aspx)",
>			@" www.msdn.microsoft.com/en-us/library/aa139615.aspx ",
>			@"http://msdn.microsoft.com/en-us/library/ aa172799SQL.80.a",
>			@" (http://msdn.microsoft.com/en-us/library/aa172799(SQL.80).aspx) ",
>			@"http://microsoft.com/test.asp?url=/example/abc.asp?frame=true#fragment   ",
>			@"http://192.168.10.254/test.asp?url=/example/abc.asp?frame=true#fragment   ",
>			@"wwww.192.168.10.254/test.asp?url=/example/abc.asp?frame=true#fragment   ",
>			@"www.microsoft.com/test.asp?url=/example/abc.asp?frame=true#fragment   ",
>		};
>	}
>
>}

Thanks, I'll try next Sunday.