public override int ModifyProcessAgent(string originalGuid, ProcessAgent agent, string extra)
 {
     int status = 0;
     UserSchedulingDB dbManager = new UserSchedulingDB();
     if (dbManager.AuthenticateAgentHeader(agentAuthHeader))
     {
         status = dbManager.ModifyProcessAgent(originalGuid, agent, extra);
     }
     return status;
 }