ConnectionOptions options =  new ConnectionOptions();		
options.Impersonation = ImpersonationLevel.Impersonate;
options.Authority = "ntdlmdomain:MyDomain";
options.Username = "myBenutzer";
options.Password = "myPasswort";
 
string queryString = "SELECT Name, ProcessId, Caption, ExecutablePath" + " " & _
  "FROM Win32_Process";//   where Name=" +pList.p_name ;
 
SelectQuery query = new SelectQuery(queryString);
 
ManagementScope scope = new System.Management.ManagementScope( _
  @"\\"+server+@"\root\CIMV2",options);
 
//  ^^ hier entsteht schon der Fehler !!!!!
 
scope.Connect ();