however it says I can't CC or reassign it to him as the email address I used, pouech-eric@wanadoo.fr, is not a valid bugzilla account.
mu bugzilla account is pouech at winehq.com
Basically, the guy has some details on the undocumented parts of how the winhelp protocol works......
except that the described problem is a pure window messaging issue, and is not winhelp related (winhelp uses WM_WINHELP and not the WM_HELP you're talking about) so the bug should be set in ui category, not winhelp
A+