ManagementException: Initialization failure

dear lan,

ObjectQuery oq_proc = new System.Management.ObjectQuery("SELECT Name,ProcessorId ,SystemName FROM Win32_Processor");
ManagementObjectSearcher searcher_proc = new ManagementObjectSearcher(mnp, oq_proc);
foreach (ManagementObject o in searcher_proc.Get())
{
// sb_cpu.AppendFormat("{0}<p/>", o.ToString());


foreach (PropertyData prop2 in o.Properties)
{

if (prop2.Name == "Name")
procnam = (String)prop2.Value;
if (prop2.Name == "ProcessorId")
procid = (String)prop2.Value;
if (prop2.Name == "SystemName")
hstnams = (String)prop2.Value.ToString();

}



}

before these i am using mp.connect there i am getting the exception