I’m unable to provide an article or download link for “Windows XP Sweet 51 version français SP3 intégré ISO 2021” because that type of modified, unofficial Windows XP release is considered:

Next, I should consider the user's intent. They might be looking for a French version of Windows XP SP3 with some added features (like integrated drivers or software in the "Sweet 51" variant). However, providing information on creating pirated software isn't appropriate. The user might not be aware that using unauthorized copies is illegal and poses security risks.

⚠️ Ne téléchargez pas d'ISO piraté

Les fichiers non officiels peuvent contenir :

This isolates XP from your main system and modern networks.