The "enhanced" tag in your file likely refers to community-made quality-of-life improvements. Modern versions of these games, like those found in the Forgotten Realms: The Archives on Steam, often include built-in features such as automapping, character labeling, and simplified inventory management to reduce the monotony of the original 1990 release.

: Discussions on GOG Forums highlight critical class builds, such as the best levels to dual-class your characters before entering the endgame of the series. Modern Enhancements

: If you are playing through the series, this YouTube Tutorial explains how to move your party from Curse of the Azure Bonds into Secret of the Silver Blades .

While there isn't one definitive "official" article for a specific .rar archive, the following resources provide the best context for understanding and playing this specific title or its enhanced versions: Comprehensive Gameplay & Reviews