Why does it not work

[gamecocks]

if I add lib in link in project setting. It cann't recognize the symbol in my dll. But I insert dll project in workplace in which exe project is, it work. Who can explain why. In fact two way should be equivalent. Thanks. By the way first way it work before I rewrite my dll. I do second way in order to let it work.

[MrViggy]

Are you linking with the proper library, and not an older version?

Viggy

[gamecocks]

Thank for your reply. I put latest lib in link and compile it, I got message it cann't recognize the symbol...... I insert dll project into exe project's workspace and let exe depend on dll and compile it.It is OK. I know second way is ugly, but work. Two ways should be equivalent. I don't know why first way don't work. By the way first way work before I rewite dll project.