Hi, I understand that on the win32 platforms boost.threads requires a dll to be build - threadmon. I seem to remember that this is there as a workaround to help support thread local storage (but I can't seem to find mention of it in the docs now, so I am not 100% sure of this). If this is the case, is it possible to use boost.threads *without* the dll if thread local storage is not being used? Regards, [)o IhIL..