|Product:||Internet Security and Acceleration Server|
|Source:||Microsoft ISA Server Control|
|Component:||ISA Server Services|
|Message:||The application filter (%2, CLSID=%3) performed an illegal operation inside the Firewall service process at method %1. The Firewall service terminated. To resolve this error, remove recently installed application filters and restart the service. If this does not resolve the problem, contact the component vendor.|
|An application filter contains an invalid command.|
|After removing the application filter, restart the Firewall service. To do this, in the console tree of ISA Server Management, click Monitoring. In the details pane, click the Services tab, and then select Microsoft Firewall service. On the Tasks tab, click Start Selected Services.
If this does not resolve the problem, contact the component vendor.