Office 97 is not compatible with XP. Sure, you will find some that say it works, but I have seen the fallout. To excise it I look up ORK OFFICE REMOVAL TOOL on Google and that usually peels it out IF you can't use System Restore to go back.

In closing, IEFIX may need to be run after removal. And IEFIX is found with As well, Zone Alarm is not an antivirus so I'd ask around about that.