The Application Compatibility Program Inventory must be prevented from collecting data and sending the information to Microsoft.
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent the Program Inventory from collecting data about a system and sending the information to Microsoft.
How this relates to the STIG checklist: STIG vs SCAP benchmark.