File:eSOL-Logo.png
Logo for eSOL.

eSOL is a company based in Japan that Nintendo used for some Wii libraries. They used:

  • PrFILE2 (FAT filesystem, used in VFFs)
  • PrMAIL (Mail system, not much is known about this)
  • PrUSB/Host (USB library)

Nintendo also used their libraries for the Wii U and Switch.

We don't have these libraries but we found some of the code from PrFILE2 in Nintendo's OSS pack for the Wii U.