diff --git a/src/cas/os/posix/casSpecificOS.h b/src/cas/os/posix/casSpecificOS.h
deleted file mode 100644
index 248e5ac0e..000000000
--- a/src/cas/os/posix/casSpecificOS.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * $Id$
- * Some of this isnt posix - its BSD
- *
- * $Log$
- */
-
-#ifndef includeCasSpecificOSH
-#define includeCasSpecificOSH
-
-#include <singleThread.h>
-
-#include <unistd.h>
-#include <errno.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-
-#include <bsdProto.h>
-
-#ifdef __cplusplus
-}
-#endif
-
-
-typedef int                     SOCKET;
-#define SOCKERRNO               errno
-#define socket_close(S)         close(S)
-#define socket_ioctl(A,B,C)     ioctl(A,B,C)
-
-#define ntohf(A) (A)
-#define ntohd(A) (A)
-#define htonf(A) (A)
-#define htond(A) (A)
-
-#endif /* ifndef includeCasSpecificOSH (no new code below this line) */
-