The start time for the updates can also be specifi ed. This should be staggered for each
engine to ensure that updates do not occur at the same time. It is recommended that
you update the defi nitions once per hour, which is the default setting. This helps to
ensure that you are running the latest defi nitions. By not updating the defi nitions
regularly, you run the risk of detectable viruses not being detected.
It is also possible to confi gure updates to occur when FSE is started. This is useful
if you have specifi ed a long update window. If you use the default setting of hourly
updates, then this is usually not required.
This can be confi gured by:
1. Select Settings followed by General Options.
2. Check Perform Updates at Startup (see Figure 5.6).
3. Click OK to save the changes.
If you want to be notifi ed of update actions such as Update Success, Failure, and
No Updates Available, these updates can be sent to the Virus Administrator. The address
of the Virus Administrator is confi gurable and is covered later in this section. To enable
notifi cation:
1. Select Settings followed by General Options.
2. Check Send Update Notifi cations.
3. Click OK to save the changes.
Using Forefront to Guard Microsoft Exchange Server ??? Chapter 5 209
The remaining options are to force an update using the Update Now option and to
disable updates for AV engines. This can be useful it you do not use some of the engines
or do not want to keep up-to-date defi nitions for them.
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