using   System.Diagnostics; 
try 
{ 
      Process.Start( "IExplore.exe ",   "http://www.csdn.net "); 
} 
catch 
{ 
    throw   new   Expction( "wrong url!!!!!"); 
}

------解决方案--------------------

直接 Process.Start

------解决方案--------------------

Process.Start 就可以了