If you have the MOM Agent installed on the ISA firewall, you’ll need to disable the MOM Agent before installing the ISA firewall Service Pack 2 or when upgrading to ISA 2006. The ISA firewall team recommends that you disable MOM Agent and other monitoring Agents in the following scenarios:
- Install ISA Server hotfix
- Install ISA Server service pack
- Repair or modify the ISA Server installation
- Uninstall ISA Server
- Upgrade ISA Server
HTH,
Tom