ActiveX Installer (AxInstSV) Service Defaults in Windows 7

Provides User Account Control validation for the installation of ActiveX controls from the Internet and enables management of ActiveX control installation based on Group Policy settings. This service is started on demand and if disabled the installation of ActiveX controls will behave according to default browser settings.

Default Settings

Startup type:Manual
Display name:ActiveX Installer (AxInstSV)
Service name:AxInstSV
Service type:share
Error control:normal
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k AxInstSVGroup
File:%SystemRoot%\System32\AxInstSV.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AxInstSV
Privileges:
  • SeAssignPrimaryTokenPrivilege
  • SeIncreaseQuotaPrivilege
  • SeTcbPrivilege
  • SeBackupPrivilege
  • SeRestorePrivilege
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege

Default Behavior

ActiveX Installer (AxInstSV) is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the ActiveX Installer (AxInstSV) service is started, it is running as LocalSystem in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If ActiveX Installer (AxInstSV) 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 AxInstSV service is not running because of the error.

Dependencies

ActiveX Installer (AxInstSV) is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Configuration for ActiveX Installer (AxInstSV)

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

2. Save the Win7_AxInstSV_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The AxInstSV service is using the AxInstSV.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.