using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
	string msg1 = "<a href='http://w...content-available-to-author-only...t.com'>http://w...content-available-to-author-only...t.com</a>";	
	string msg2 = "http://w...content-available-to-author-only...t.com";	
	
	string regex = @".+((www\.|(http|https|ftp|news|file)+\:\/\/)[&#95;.a-z0-9-]+\.[a-z0-9\/&#95;:@=.+?,##%&~-]*[^.|\'|\\||\# |!|\(|?|\[|,| |>|<|;|\)])(.+)?";
    Regex r = new Regex(regex, RegexOptions.IgnoreCase);
    
    string f = r.Replace(msg1, "<a href=\"$1\" title=\"Click to open in a new window or tab\" target=\"&#95;blank\">$1</a>").Replace("href=\"www", "href=\"http://www").Replace(@"\r\n", "<br />").Replace(@"\n", "<br />").Replace(@"\r", "<br />");
	Console.WriteLine(f);
	
	string g = r.Replace(msg2, "<a href=\"$1\" title=\"Click to open in a new window or tab\" target=\"&#95;blank\">$1</a>").Replace("href=\"www", "href=\"http://www").Replace(@"\r\n", "<br />").Replace(@"\n", "<br />").Replace(@"\r", "<br />");
	Console.WriteLine(g);
	}
}