--- tests/ocsp_test.c.orig 2018-07-24 21:59:17.000000000 -0500 +++ tests/ocsp_test.c 2018-11-07 18:44:43.000000000 -0600 @@ -35,6 +35,11 @@ hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM; +#ifdef _MSC_VER + if (BIO_sock_init() != 1) + exit(-1); +#endif + error = getaddrinfo(host, port, &hints, &res); if (error != 0) { perror("getaddrinfo()");