If you are specifically looking for a 64-bit version of a WBFS management tool, here are your best options: Wii Backup Manager (Highly Recommended) : This is the current "gold standard" for 64-bit Windows. Functionality : Manages FAT32, NTFS, and WBFS drives. : It can automatically split games larger than 4GB (like Super Smash Bros. Brawl

Essential Guide to WBFS Manager 64-Bit for Nintendo Wii Backups

) to fit on FAT32 drives, which is the most compatible format for modern Wii homebrew like USB Loader GX. WBFS Manager 3.0 (Legacy) : Some repositories like the GBAtemp Wiki provide separate x86 (32-bit) x64 (64-bit) installers for version 3.0.1.