Configuring ZoneAlarm to work with ESET NOD32

When you are updating the first time, the following window may pop out, you should tick "Remember this setting”, then click OK and it is done. (See Figure 1):
Figure 1

If the above window doesn't appear, please follow these instructions:

Double click on the ZoneAlarm icon in your system tray(see Figure 2):

Figure 2

The ZoneAlarm main window would appear, click on Program Control -> Programs, to look for nod32krn.exe. Then in the Access Column, choose Allow. (See Figure 3).
Figure 3

And then the configuration is finished.