Ok, it's fixed for good this time, could reproduce it in linux and in french. You need to download the new dlls-0.97.4 and redownload the latest raine version too !
Sorry for the inconvenience, it was worse for me, I had to rebuild a few packages manually, windows is really a nightmare lately.
All 0.97.3 is removed, dlls and raine versions.
A few more details : apparently the gcc libs became incompatible with the gettext version I had installed. In a normal system all of this is updated at the same time so you never see incompatibilities like that, except that since I cross compile, that is I prefer to build raine from linux instead of from windows, some of the packages are not in binary form but in source form only, and I need to recompile them when i want to update them, gettext is in this category, and it's very long to compile, so I avoid to compile it as much as possible. Except there is no warning about incompatibilities, and they are easily missed in such a setup !
I would really need someone to take care of the windows version from windows, it would be easier for everyone, but I don't want to do it because rebooting all the time would be longer. Anyway I hope this mess will be over for quite a while !