http://bugs.winehq.org/show_bug.cgi?id=17195
--- Comment #40 from Luke Kenneth Casson Leighton lkcl@lkcl.net 2011-12-16 12:16:02 CST --- dan, apologies for not making this clearer: potentially hundreds of thousands of file handles will be required. this patch is NOT production-suitable, you really do have to bite the bullet and fix wineserver properly.
this patch is for "demonstration purposes" ONLY and it would be a severe bug if it were included, as it could be used to attack a system through resource starvation simply by opening hundreds or thousands of NamedPipes and sending hundreds or thousands of messages on each pipe.
sorry, dan - this is about limitations in the design of wine that simply haven't had to be tackled up until now: it's now time to deal with them if wine is to ever progress to the next level of interoperability.