[PA] Well, may I suggest an offline discussion with Alain Labontà (cc'ed) ? He is more aware of this issue than I am.[PA] Let me be reasonable as you kindly suggest, how about proper French?
Canadian (CAN/CSA Z243.4.1 standard (which you most probably know) and
ISO/IEC 14651 with the delta corresponding to the latter) or Khmer sorting
I am unaware of any specific non-conformant pieces in Windows in regard to the former standard.
I believe he has already transmitted his concern relative to this non-conformance through other channels in Microsoft (subsidiaires and other members of the Unicode consortium).
P. A.