Symantec Protection Engine 7.8.x and 7.9.x now runs as a native 64-bit application. Due to reconstruction of the SPE configuration (XMLs and XMLtags) files, Symantec Protection Engine 7.8.x and 7.9.x do not support direct upgrade from previous versions. If you want to preserve the configurations, logs, and the definitions from the previous release of Symantec Protection Engine, you can use the migration utility. You can use this utility to migrate the old configurations, logs, and definitions (only URL Filtering) from SPE 7.5.x to SPE 7.8.x or 7.9.x.
If you want to upgrade from the version 7.0.x, you must first upgrade to 7.5.x and then upgrade to version 7.8.0, 7.8.1, or 7.9.0 using the migration utility. For the detailed information about upgrading from SPE 7.0.x to 7.5.x, see the attached Symantec Protection Engine Implementation Guide.
Click Download Files to download the migration utility and the document that explains SPE migration process in detail.