> If you are using pure C runtime you really need to consider if you should be using wine at all. There are more and more ways to go native. > i still need the application to run in windows. > If this is windows program then win32 api will be faster. Because Wine's msvcrt is written on top of the win32 api. And does not call glibc functions directly. > then i can conclude that i should use win32api instead of msvcrt, whether running in Windows or Wine, isn't it?[/quote]