C#

using Microsoft.Win32;
using System.Text;
public string GetBrowser()
{
   RegistryKey root = Registry.ClassesRoot;
   RegistryKey regKey = root.OpenSubKey(@"\htmlfile\shell\open\command");
   StringBuilder sb = new StringBuilder((string)regKey.GetValue(String.Empty));
   sb.Remove(0, 1);
   string str = sb.ToString();
   int i = str.IndexOf('"');
   sb.Remove(i, (sb.Length-i));
   return sb.ToString();		
   }

//then to open the borswer with the file.

System.Diagnostics.Process.Start(GetBrowser(), "http://www.codeproject.com");

Email: theeclypse@hotmail.com   URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Email: theeclypse@hotmail.com   URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

interface IA<br />
{<br />
  ... methods, properties, etc of A ...<br />
}<br />
<br />
interface IB <br />
{<br />
  ... methods, properties, etc of C ...<br />
}<br />
<br />
class C : object, IA, IB<br />
{<br />
  private A a;<br />
  private B b;<br />
<br />
  public void MethodOfA()<br />
  {<br />
    a.MethodOfA();<br />
  }<br />
 <br />
  // useful when you specifically request a class in terms of A<br />
  // and B has the same implementation.<br />
  void IA.MethodOfA()<br />
  {<br />
    a.MethodOfA();<br />
  }<br />
 <br />
  ....<br />
}