To use vShield Zones 1.0 with ESX 4.1, you must install vShield Zones 1.0 Update 1.
vShield Zones updates are available as offline updates. When an update is made available, you can download the update to your PC, then upload and install the update by using the vShield Manager user interface. For more on the update process, see thevShield Zones Administration Guide.
Based on VMware KB 1022536