agentName = "HeaderAnalysisAgent"; $agentFactory = "Microsoft.Exchange.Transport.Agent.HeaderAnalysis.HeaderAnalysisAgentFactory"; ...

$agentName = "HeaderAnalysisAgent";          $agentFactory = "Microsoft.Exchange.Transport.Agent.HeaderAnalysis.HeaderAnalysisAgentFactory";          $agentAssembly = ($RoleInstallPath + "TransportRoles\agents\HeaderAnalysis\Microsoft.Exchange.Transport.Agent.HeaderAnalysis.dll");          $agent = get-transportagent -Identity:$agentName;          if ($agent)           {              uninstall-transportagent -Identity:$agentName          };          install-TransportAgent -Name:$agentName -TransportAgentFactory:$agentFactory -AssemblyPath:$agentAssembly;          if ($agent.enabled -or ! $agent)           {               enable-transportagent -Identity:$agentName           };