Application Experience (AeLookupSvc) Service Defaults in Windows 7

Processes application compatibility cache requests for applications as they are launched.

Default Settings

Startup type: Manual
Display name:Application Experience
Service name:AeLookupSvc
Service type:share
Error control:normal
Path:%SystemRoot%\system32\svchost.exe -k netsvcs
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AeLookupSvc
  • SeTcbPrivilege
  • SeImpersonatePrivilege

Default Behavior

Application Experience is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Application Experience 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 Application Experience 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 AeLookupSvc service is not running because of the error.

Restore Default Startup Configuration of Application Experience

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config AeLookupSvc start= demand

3. Close the command window and restart the computer.

The AeLookupSvc service is using the aelupsvc.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.