'''IOS61''' was initally released alongside [[IOS60]]. It was used by the [[Wii Shop Channel]] from the [[System Menu 4.0]], [[System Menu 4.1|4.1]], and [[System Menu 4.2|4.2]] updates. Also used by Photo Channel 1.1 v3+.
It is composed of 15 app parts, the [[ticket]] and the [[Title metadata|TMD]]. This [[IOS]] is known to have SDHC support. On the [[vWii]] this IOS is missing.