| Details | |
| Product: | Internet Security and Acceleration Server |
| Event ID: | 21147 |
| Source: | FTP Access Filter |
| Version: | 4.0.3443.594 |
| Component: | ISA Server Services |
| Message: | Microsoft ISA Server SMTP Message Screener failed to start. Reason: The SMTP Message Screener could not read the registry configuration (error code %1). |
| Explanation | |
| The ISA Server SMTP Message Screener could not read the registry configuration. | |
| User Action | |
| Verify that the Message Screener filter has access to the registry by looking at the security event log and verify that the registry is configured correctly. | |