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The Microsoft Dynamics AX 2012 upgrade process requires manual installation of three files on your source Microsoft Dynamics AX 4.0 or Microsoft Dynamics AX 2009 system. An XPO file provides the forms and scripts that are required for data preprocessing, an ALD file provides user interface labels, and a CHM file provides user Help.
1. Install and import the XPO upgrade framework file
2. Install the CHM file for user Help
3. Install the ALD label file