With the introduction of the mini file filter driver, which is part of SafeGuard Enterprise as of version 8.10, Sophos provides regular File Encryption Engine updates that just contain improved filter drivers. These updates are provided as Windows Installer Patch files (*.msp) to allow an easy installation and deployment. As these updates are cumulative, Sophos recommends using the latest version.
In this KBA you can download build version 31 of the filter driver engine. An overview of all File Encryption Engine Updates is available here.
The following sections are covered:
Applies to the following Sophos products and versions SafeGuard File Encryption 8.3SafeGuard File Encryption 8.2SafeGuard File Encryption 8.1SafeGuard Synchronized Encryption 8.1SafeGuard Synchronized Encryption 8.2SafeGuard Synchronized Encryption 8.3SafeGuard Data Exchange 8.1SafeGuard Data Exchange 8.2SafeGuard Data Exchange 8.3
This File Encryption Engine update adds File Header Caching, to improve performance (enabled by default).
Bluescreen Bugcheck 0x3b (SYSTEM_SERVICE_EXCEPTION)
Important: There is a newer version of the File Encryption Engine available. Sophos recommends using the latest version of the File Encryption Engine as there are regular improvements.
An overview of available updates, with links to the latest download is available here.
msiexec /update "C:\Install\File Encryption Engine for SGN 8.1 Build 31.msp"
msiexec /i C:\Install\SGNClient.msi PATCH="C:\Install\File Encryption Engine for SGN 8.1 Build 31.msp"
msiexec /update "C:\Install\File Encryption Engine for SGN 8.1 Build 31_x64.msp"
msiexec /i C:\Install\SGNClient_x64.msi PATCH="C:\Install\File Encryption Engine for SGN 8.1 Build 31_x64.msp"
After the installation, you can see the new File Encryption Engine in the Installed Updates section of Programs and Features.
As this package just contains new filter drivers and no other products components, this update does not change the version or build number of the installed SafeGuard Client. In the SafeGuard Management Center as of version 8.20, the file filter engine version of this update (18.104.22.168) is also listed in the installed features list of the Client.
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