[TheGrunch]

The_WOZ, output was as follows:

% env WINEPREFIX=/home/david/Servers/il2-4.12/ strace -eopen wineconsole --backend=curses /home/david/Servers/il2-4.12/drive_d/il2server/il2server.exe
open("/etc/ld.so.cache", O_RDONLY)      = 3
open("/lib64/libtinfo.so.5", O_RDONLY)  = 3
open("/lib64/libdl.so.2", O_RDONLY)     = 3
open("/lib64/libc.so.6", O_RDONLY)      = 3
open("/dev/tty", O_RDWR|O_NONBLOCK)     = 3
open("/usr/lib/locale/locale-archive", O_RDONLY) = 3
open("/proc/meminfo", O_RDONLY)         = 3
open("/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
open("/usr/bin/wineconsole", O_RDONLY)  = 3
--- SIGCHLD (Child exited) @ 0 (0) ---
[ Process PID=761 runs in 32 bit mode. ]
open("/etc/ld.so.cache", O_RDONLY)      = 3
open("/usr/lib/libwine.so.1", O_RDONLY) = 3
open("/lib/libpthread.so.0", O_RDONLY)  = 3
open("/lib/libc.so.6", O_RDONLY)        = 3
open("/lib/libdl.so.2", O_RDONLY)       = 3
open("/usr/bin/wine", O_RDONLY)         = 3
open("/lib/ld-linux.so.2", O_RDONLY)    = 3
open("/etc/ld.so.cache", O_RDONLY)      = 3
open("/usr/lib/libwine.so.1", O_RDONLY) = 3
open("/lib/libpthread.so.0", O_RDONLY)  = 3
open("/lib/libc.so.6", O_RDONLY)        = 3
open("/lib/libdl.so.2", O_RDONLY)       = 3
open("/usr/lib/wine/ntdll.dll.so", O_RDONLY) = 3
open("/etc/ld.so.cache", O_RDONLY)      = 3
open("/lib/libm.so.6", O_RDONLY)        = 3
open(".", O_RDONLY|O_LARGEFILE)         = 3
open("/etc/nsswitch.conf", O_RDONLY)    = 4
open("/etc/ld.so.cache", O_RDONLY)      = 4
open("/lib/libnss_files.so.2", O_RDONLY) = 4
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 4
--- SIGCHLD (Child exited) @ 0 (0) ---
open("/proc/cpuinfo", O_RDONLY|O_LARGEFILE) = 6
open("/usr/lib/wine/kernel32.dll.so", O_RDONLY) = 6
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 6
open("/proc/ide", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/proc/scsi/scsi", O_RDONLY|O_LARGEFILE) = 6
open("/home/david/Servers/il2-4.12/dosdevices/z:/home/david", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 9
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 9
open(".", O_RDONLY|O_LARGEFILE)         = 13
open(".", O_RDONLY|O_LARGEFILE)         = 13
open(".", O_RDONLY|O_LARGEFILE)         = 13
open("/usr/lib/wine/wineconsole.exe.so", O_RDONLY) = 9
open("/home/david/Servers/il2-4.12/dosdevices/c:/windows/syswow64", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 9
open("/usr/lib/wine/advapi32.dll.so", O_RDONLY) = 9
--- SIGCHLD (Child exited) @ 0 (0) ---
open("/etc/ld.so.cache", O_RDONLY)      = 9
open("/lib/libncurses.so.5", O_RDONLY)  = 9
open("/lib/libtinfo.so.5", O_RDONLY)    = 9
open("/usr/share/terminfo/x/xterm", O_RDONLY|O_LARGEFILE) = 9
open("/proc/meminfo", O_RDONLY)         = 9
open("/usr/share/terminfo/x/xterm", O_RDONLY|O_LARGEFILE) = 10

It doesn't look immediately enlightening to me, but maybe there is another system call that is likely to have some useful info?