Certain Open Server routines are not supported on Windows platforms. Although you can use srv_capability to determine whether a routine is supported, the Open Server DLL does not provide stub points to resolve link-time dependencies. If a portable application uses any of the following Open Server routines, make sure that it calls srv_capability to determine the availability of the routine and to provide a Windows-specific stub module for linking:
srv_poll
srv_select
srv_signal
srv_sigvec
srv_dbg_stack
