(B777) 40kts landing x-wind limit wet or dry. Autoland limit the same for Cat I or better, 25kts for Cat II or III (15kts in the USA - think this is an FAA thing because I've had this on previous types too...).
Very rare to get big winds in vis. requiring autoland (can happen), and this aeroplane (like the 757 & 767) does actually apply cross-controls when it goes into "runway alignment" mode prior to what is usually an embarassingly good landing. Can't say I'd be too keen to test it in 40-across conditions, though I'm sure some brave soul has to get it published in the manual.