Thanks, but admittedly I suck at understanding French when almost all example pictures are broken URLs now. But I saw the surviving ICC color profile v2 or v4 test image: XnView groks all examples, Chrome only supports v2.
Windows stores color profiles in %windir%\system32\spool\drivers\color. Despite of the name
system32 this is the 64bit version of system32 on a 64bit box. XnView as 32bits application can only see
syswow64, but there is no %windir%\syswow64\spool\drivers\color. In the SysInternals book (available online for registered users) I found a trick for this hurdle, a 32bit application on a 64bits platform can access the 64bits
system32 as %windir%\
sysnative\spool\drivers\color. So now I have my own "calibrated color profile" configured as C:\windows\sysnative\spool\drivers\color\CalibratedDisplayProfile-5.icc.
(Cheating, actually I just copied the ICC profile to "C:\users\metoo\pictures\ICC tests\profiles", where XnView classic has no issues to access it.)