This function installs or removes a specific stream protocol for a stream handler.
#include <os2.h>
HID hid; /* Stream handler ID. */
PSPCBKEY pspcbkey; /* SPCB key. */
PSPCB pspcb; /* SPCB address. */
ULONG ulFlags; /* Flags. */
ULONG rc; /* Return codes indicating success or the type of failure: */
rc = SpiInstallProtocol(hid, pspcbkey, pspcb,
ulFlags);