User Interaction and Console Output

• An ASCII art title is now displayed in the console on startup.
• Console messages for INFO, WARN, and ERROR, color-coded for visibility.
• Interactive user prompts have been implemented for all key decision points, such as selecting an installation path, confirming a re-installation, or approving a license overwrite. This replaces previous non-interactive behaviors.

Script Config & Parsing

• The system for parsing the script's filename for configuration has been completely refactored from a single function into a more modular and robust set of functions.
• Support has been added for a simplified custom license format where only a licensee name is required; the script will use a default license type in this case.
• Validation logic now handles requests for unsupported version/architecture combinations (e.g., 32-bit versions after support ended) by providing the user with interactive prompts and alternative options.
• The in-script documentation has been expanded with more detailed examples of supported naming conventions.

Download & Installation Process

• The script now utilizes multiple official download servers and includes an automatic retry mechanism to increase download reliability.
• A pre-download verification step has been added. It checks if the requested file exists on the server before initiating the full download, which prevents errors from invalid version requests.
• Local installer detection logic has been updated to recognize both modern (winrar-x...) and legacy (wrar...) installer naming schemes.
• A pre-installation check now verifies if the target WinRAR version is already installed and requests user confirmation before proceeding with a re-installation.

Licensing System

• Functionality has been added to automatically retrieve and download the keygen if it is not available locally when a custom license is requested.
• The script now prompts for user confirmation before overwriting an existing license, unless an overwrite mode is explicitly specified in the script name.
• When run in 'license-only' mode, if WinRAR is not found to be installed on the system, the script now offers the user the option to perform the installation first.
• Success notifications for custom licenses now display the licensee and license type that were used.

Environment Handling

• The script can now detect if both 32-bit and 64-bit versions of WinRAR are installed on the same system. If detected, it will prompt the user to select which installation to target for relevant operations (e.g., uninstalling, applying a license).

Internal Changes & Bug Fixes

• The script has undergone significant internal refactoring. Core processes have been modularized into dedicated functions, and numerous utility functions have been added to standardize operations.
• Fixed an issue where the downloaded installer file was not always deleted correctly after use when not explicitly set to be kept.
• Fixed a bug where internal variables for the license key file path were incorrectly defined, pointing only to the directory instead of the full file path.
• Internal documentation, including comment-based help blocks for functions, has been substantially expanded.
• Version constants and lists of known WinRAR versions have been added and updated to support validation logic.