Find the line defining AI1WM_MAX_FILE_SIZE (usually around line 282).
Because this is an older version, it is not available on the official WordPress.org plugin repository (they only host the latest 3-4 versions). You should never download from random file-sharing sites unless you verify file integrity.
If you are a developer, check your local ~/wp-content/plugins/ archives. Version 67 was standard 18 months ago. You may already own a legal copy.
Find the line defining AI1WM_MAX_FILE_SIZE (usually around line 282).
Because this is an older version, it is not available on the official WordPress.org plugin repository (they only host the latest 3-4 versions). You should never download from random file-sharing sites unless you verify file integrity.
If you are a developer, check your local ~/wp-content/plugins/ archives. Version 67 was standard 18 months ago. You may already own a legal copy.