a +ntdll trace would be helpful
How do I enable that? (likely a noob question)
WINEDEBUG=+ntdll wine foo.exe
OK, got it. I have attached a log to the bugzilla entry.
In addition, I also now attached an executable, complete with sample data, so anybody may quickly reproduce it. This is not our WRC app, but the plain vanilla Microsoft sample, which needs no install. It also shows the problem, and even more drastic (failing to serve a small file, too).
Thanks to everyone! Jörg