In this tab the anti-virus engine parameters are set. You can specify a non-standard location of the anti-virus engine (the search module) and the virus databases.
If during the mail guards session there was an update by the automatic updating utility, SpIDer Mail immediately loads the databases updated. If databases were updated in another way (for example, they were copied to the installation folder), the mail guard can also load the updated databases without reloading the program. This is periodically checked by the flag file (by default, a "hot add-on" of the database). A change of the flag file means it is high time to update the databases. You can specify the name and the location of the flag file, as well as the interval between the checks (300 seconds, by default).
For more details on the settings specified in this pane click the corresponding area of the window in the picture.
To view parameters set at another tab click the name of this tab.