You're welcome.
Zone Alarm had this posted for Windows 98,windows 98 SE,and Windows ME users:
http://zonelabs.com/store/support/win98MEusers.jsp
So you would have to have a pre-6.5 version of Zone Alarm.
There are older Zone Alarm products at oldversion.com that look to be newer than the version you have,if you do want to update Zone Alarm to a newer version than you have:
http://www.oldversion.com/program.php?n=zalarm