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Compile into .NET Framework CIL

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Important

This content is archived and is not being updated. For the latest documentation, see Microsoft Dynamics 365 product documentation. For the latest release plans, see Dynamics 365 and Microsoft Power Platform release plans.

Applies To: Microsoft Dynamics AX 2012 R3, Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012

The Compile into .NET Framework CIL task converts your compiled application code into Common Intermediate Language (CIL) code that can be consumed by the Microsoft .NET Framework.

The purpose of CIL

CIL is the bytecode language that the just-in-time (JIT) compiler of the .NET Framework interprets. Microsoft Dynamics AX converts compiled X++ code, or p-code, to CIL. This conversion provides interoperability with .NET classes, and it also improves performance. The following Microsoft Dynamics AX components rely on the speed of CIL:

  • Batch jobs

  • Application Integration Framework (AIF) and services

  • Run-as scenarios, in which .NET functions are substituted for X++ functions at run time

Scenarios that require the CIL task

You may have to run the Compile into .NET Framework CIL task in the following two scenarios:

  • You are installing Microsoft Dynamics AX, and you encounter the task in the Initialization checklist.

  • You are performing an upgrade on a Microsoft Dynamics AX system that includes customized application code, and you encounter the task in either the AOD code upgrade checklist or the Model code upgrade checklist.

Important

In all checklists that include the Compile into .NET Framework CIL task, the previous task is Compile application. You must complete the Compile application task before you can perform the Compile into .NET Framework CIL task.