Find URL Links in String

Question

Hi All,

 

   I want to find URL links in string. That may contain follows,

 

   www.google.co.in  , http://csharp.com , microsoft.com.

 

   I found so many Regex Pattern's to find the Links which starts in http and www, But not find the the simple URL links like microsoft.com, infocus.com, regexr.com.....

 

Can any one give pattern to find that,

 

Thankz in advance.