> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Engine Loaders Compatibility with Version 10

> Engine loader API compatibility changes between ABBYY FineReader Engine 12 and 10 — InprocLoader, OutprocLoader, and loader interface updates.

This section describes all changes to Engine loaders which may require changes in the source code of your applications.

<table><thead><tr><th><p><strong>Object/Enumeration</strong></p></th><th><p><strong>Property/Method/Constant</strong></p></th><th><p><strong>What has happened?</strong></p></th><th><p><strong>Comment</strong></p></th></tr></thead><tbody><tr><td rowspan="2"><p><strong><a href="/fine-reader/engine/api-reference/engine-loaders/iengineloader">IEngineLoader</a></strong></p></td><td><p><strong>DataFolder</strong><br /><strong>TempFolder</strong></p></td><td><p>Removed</p></td><td><p>To specify the path to the folder with user-specific data and temporary files folder, set these parameters during initialization using the <strong><a href="/fine-reader/engine/api-reference/engine-loaders/iengineloader/initializeengine-method">IEngineLoader::InitializeEngine</a></strong> method.</p></td></tr><tr><td><p><strong>GetEngineObject</strong><br /><strong>GetEngineObjectEx</strong></p></td><td><p>Removed</p></td><td><p>Please use the <strong><a href="/fine-reader/engine/api-reference/engine-loaders/iengineloader/initializeengine-method">IEngineLoader::InitializeEngine</a></strong> method instead.</p></td></tr></tbody></table>