Forefront Security for Exchange Server: The Kaspersky 8 antivirus engine used in Forefront Security for Exchange Service Pack 2 Hotfix Rollup 3 does not have incremental update functionality.

SUPPORT SOLUTION:
Use the hotfix button at the top of this page to acquire the hotfix.The patch will contain 1 new binary file; GetEngineFiles.exe. The patch version of GetEngineFiles.exe will be version 10.2.955.0.On the system where FSE 10.2 RU3 is installed there will be a GetEnginesFiles.exe file installed that has a version of 10.2.0954.0.The GetEngineFiles.exe file, by default, is located here: C:\Program Files (x86)\Microsoft Forefront Security\Exchange ServerRename the current copy (e.g. GetEngineFiles.old) and place the new patched binary it in’s place.No system services or processes need to be interrupted while applying the hotfix..Engine Update Test
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After you have applied the hotfix, you can test update functionality by performing a manual update.1.) Open the Forefront interface2.) Navigate to Settings and then Scanner Updates3.) Highlight the Kaspersky engine4.) Click Update NowPlease note that the first update after applying this hotfix may result in a long update time as we perform a full engine update. However, after this initial engine update, subsequent times will drop notably as incremental updates are now functioning properly. An issue has been identified in Forefront Security for Exchange Service Pack 2 Hotfix Rollup 3 in the way that it retrieves updates for version 8 of the Kaspersky antivirus scan engine.The incremental engine update functionality may fail resulting in a full engine update. This full engine update may require downloading an engine file package in excess of 160 megabytes. Due to the size and frequency of the engine update, servers may experience a noticeable spike in resource consumption.  .

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