I use the installer, from the official link :
http://www.msgplus.net/pluginsdb/down/pafiledb.php?action=file&id=71
The problem is maybe due to MsgPlus.
it doesn't detect the plugin.
I can see your dll file into my Msgplus directory :
"D:\Programmes\Messenger Plus\Plugins\FreeImage.dll"
Is there a way to force msgplus to load the file?
Thanks for your answer.