(svn r12792) -Codechange: [autoreplace] added a function to figure out if a replacement is needed and if so, to which EngineID
It's designed to save a bit of CPU time, specially if the replacement isn't buildable (think autorenew of old vehicle)

start /n /win openttd.exe -D %1 %2 %3 %4 %5 %6 %7 %8 %9