thread_interp_reset_key = global_interp_reset_key;

	if (interp == NULL) {
		interp = appfs_create_TclInterp(NULL);

		if (interp == NULL) {
			APPFS_DEBUG("Create interp failed, returning in failure.");

			return(NULL);
		}

		pthread_ret = pthread_setspecific(interpKey, interp);
		if (pthread_ret != 0) {
			APPFS_DEBUG("pthread_setspecific() failed.  Terminating Tcl interpreter.");