The winEmbed test application is being deprecated in favour of mfcEmbed. It will still be built (as part of a standard Mozilla build) but it will not ship in the embedding nightlies and bugs against it will be marked WONTFIX unless they are for serious errors such as build bustage, crashes on startup etc. If you have any embedding bugs please test and raise them against mfcEmbed. For more information see bug 90614 http://bugzilla.mozilla.org/show_bug.cgi?id=90614 Adam
