Thank you for your first contribution, but first of all the subject isn't correct as the patch is to rpcrt4 instead of ole32.
Oups, sorry. My apologies for this mistake. But I'm currently working on ole32 and I forgot this file belongs to rpcrt4. I will pay attention next time.
Second of all, the patch is not correct as it is widl that is generating the wrong format string here:
http://www.winehq.org/pipermail/wine-patches/2008-June/056332.html http://www.winehq.org/pipermail/wine-devel/2008-June/066587.html
Thanks for the links. I didn't think one moment it can be a widl bug. I believed it was a rpcrt4 one.
François DORIN