Configuring Web Site Application Isolation Settings
Based on the application isolation mode settings of the target server, you need to configure the application isolation settings for each migrated Web site. Configure the Web site application isolation settings so that the Web sites provide the highest possible security and availability.
Configure the Web site applications isolation settings by completing the following steps for each Web site on the source server:
Document the current application isolation settings for each Web site on the source server.
When the target server is configured for IIS 5.0 isolation mode, configure the target server to use the same the isolation settings as the source server.
When the target server is configured for worker process isolation mode, convert the isolation settings on the source server to application pool settings on target server.