For Cisco Unified Intelligent Contact Management Enterprise, the Microsoft backup strategies for SQL Server are recommended. In addition, the AW Database should not require a backup as it is populated by the Logger. When backing up the Logger, the Logger process should be stopped to prevent read/write conflicts. For more information, see the Installation Guide for Cisco ICM/IPCC Enterprise & Hosted Editions 
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Also, when upgrading the ICM Enterprise, see Back Up the ICM Registry for Comparison for backing up the Windows registry for comparison.