SuperDat Engine v.5300
The v.5300 engine has been released for elective download from 2008-JUL-30 via Download Engine Updates
VirusScan 8.5i Patch 6.1
A slight problem – Install Patch 6.1 rather than Patch 6, if you are running the 5300 Engine.
PATCH 6.1 RESOLVED ISSUES
An issue can occur when the 5300 engine is installed prior to installing VirusScan 8.5i Patch 6. The scanner engine files are partially overwritten with the previous 5200 version that is stored in the MSI cache. This mismatch causes the scanner engine to fail to initialize.
The Patch installation package has been updated to correct this issue, and does not overwrite the engine files.
 Download Engine Updates [McAfee]
 When is the new 5300 Scan Engine being released [McAfee]
 Virusscan Enterprise 8.5i Patch 6.1 [McAfee]
 Release Notes for VirusScan Enterprise 8.5i Patch 6.1 [McAfee]