Network Access Protection Agent (napagent) Service Defaults in Windows 7

The Network Access Protection (NAP) agent service collects and manages health information for client computers on a network. Information collected by NAP agent is used to make sure that the client computer has the required software and settings. If a client computer is not compliant with health policy, it can be provided with restricted network access until its configuration is updated. Depending on the configuration of health policy, client computers might be automatically updated so that users quickly regain full network access without having to manually update their computer.

Default Settings

Startup type:Manual
Display name:Network Access Protection Agent
Service name:napagent
Service type:share
Error control:normal
Object:NT AUTHORITY\NetworkService
Path:%SystemRoot%\System32\svchost.exe -k NetworkService
File:%SystemRoot%\system32\qagentRT.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\napagent
Privileges:
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege

Default Behavior

Network Access Protection Agent is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Network Access Protection Agent service is started, it is running as NT AUTHORITY\NetworkService in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If Network Access Protection Agent fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the napagent service is not running because of the error.

Dependencies

Network Access Protection Agent is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Configuration for Network Access Protection Agent

1. Select your Windows 7 edition and service pack, and then click Download.

2. Save the Win7_napagent_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The napagent service is using the qagentRT.dll file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.