This version provides these new or improved features:
- Support for 64-bit operating systems. These features or products are not supported on 64-bit operating systems:
- Buffer Overflow Protection.
- Scanning of Lotus Notes databases.
- Alert Manager 4.7.1.
- Quarantine Manager Policy. Configure a policy to manage quarantined items. Before the on-access or on-demand scanner cleans or deletes a file, it creates a backup copy of the original file and registry value in the quarantine directory. These backed-up items can be automatically deleted after a specified number of days. You can also selectively restore, delete, and rescan quarantined items.

- 5100 series scanning engine. This product release provides these engine
enhancements:|-|- Incremental engine component updates. Allows engine components to be updated without updating the entire engine. The engine version, displayed in the VirusScan Enterprise "About" dialog box, shows both the engine series and the latest incremental update version. For example, 5100.0194.

|-|- Two versions of the 5100 series engine; a 32-bit version and a 64-bit version. The VirusScan Enterprise About dialog box displays the 32-bit engine version number and if the 64-bit engine is used, it also displays the 64-bit engine version number.

- Ability to use different sets of detection definition (DAT) files at the same time. For example, the engine can access the anti-virus, buffer overflow, and access protection DAT files simultaneously. This provides more efficient scanning and detection of threats.
- Detection of rootkits in memory. The on-demand scanner can be configured to scan system memory for installed rootkits. Rootkits conceal running processes and files or system data, and are a threat if an intruder uses the rootkit to maintain access to a system without the user’s knowledge.
- Enhanced Access Protection. This feature prevents unwanted changes by restricting access to specified ports, files and folders, shares, registry keys and values. The rules have been enhanced to expand exclusion capability and provide better protection:
- Access Protection rule configuration options include "Processes to include" and "Processes to exclude." See the Access Protection section of the VirusScan Enterprise Product Guide for details.
- Rules have been separated into Anti-virus, Common, Outbreak, and User-defined categories.
- Protection levels. When you install the product, you choose whether to enable "Standard Protection" or "Maximum Protection" rules as the default.
- Standard Protection. Anti-virus and common rules that protect some critical settings and files from modification, but generally allow installation and execution of legitimate software.
- Maximum Protection. Anti-virus and common rules that protect most critical settings and files from modification. These rules provide more protection, but might also prevent you from installing software. If you are prevented from installing legitimate software, we recommend that you disable the Access Protection feature before installing software, then enable it again after installation. You can change which rules are enabled and disabled after VirusScan Enterprise is installed.