Setting Virus Scanning API Performance Monitor Counters

This section applies only to the Exchange VS API mode

This information can be found in the Microsoft Knowledgebase (Q285696)

In addition to event logging, the VS API also has the capability to create performance counters.

The following Performance Monitor counters are available:

Messages Processed. This is a cumulative value of the total number of top-level messages that are processed by the virus scanner.
Messages Processed/sec. This counter represents the rate at which top-level messages are processed by the virus scanner.
Messages Cleaned. The total number of top-level messages that are cleaned by the virus scanner.
Messages Cleaned/sec. The rate at which top-level messages are cleaned by the virus scanner.
Messages Quarantined. The total number of top-level messages that are put into quarantine by the virus scanner.
Messages Quarantined/sec. The rate at which top-level messages are put into quarantine by the virus scanner.
Files Scanned. The total number of separate files that are processed by the virus scanner.
Files Scanned/sec. The rate at which separate files are processed by the virus scanner.
Files Cleaned. The total number of separate files that are cleaned by the virus scanner.
Files Cleaned/sec. The rate at which separate files are cleaned by the virus scanner.
Files Quarantined. The total number of separate files that are put into quarantine by the virus scanner.
Files Quarantined/sec. The rate at which separate files are put into quarantine by the virus scanner.
Bytes Scanned. The total number of bytes in all of the files that are processed by the virus scanner.
Queue Length. The current number of outstanding requests that are queued for virus scanning.
Folders Scanned in Background. The total number of folders that are processed by background scanning.
Messages Scanned in Background. The total number of messages that are processed by background scanning.