Consumer IR Devices (circlass) Service Defaults in Windows 7

Consumer IR Class Driver for eHome by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Consumer IR Devices
Service name:circlass
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\system32\DRIVERS\circlass.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\circlass

Default Behavior

Consumer IR Devices is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Consumer IR Devices 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 circlass service is not running because of the error.

Restore Default Startup Configuration for Consumer IR Devices

1. Run the Command Prompt as an administrator.

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

sc config circlass start= demand

3. Close the command window and restart the computer.

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