diff --git a/libx509pq--1.0.sql b/libx509pq--1.0.sql
index b361281..d8620a6 100644
--- a/libx509pq--1.0.sql
+++ b/libx509pq--1.0.sql
@@ -50,7 +50,7 @@ CREATE OR REPLACE FUNCTION x509_subjectKeyIdentifier(bytea) RETURNS bytea
 	AS 'MODULE_PATHNAME' LANGUAGE c IMMUTABLE;
 
 CREATE OR REPLACE FUNCTION x509_authorityKeyId(bytea) RETURNS bytea
-	AS '$libdir/libx509pq.so' LANGUAGE c IMMUTABLE;
+	AS 'MODULE_PATHNAME' LANGUAGE c IMMUTABLE;
 
 CREATE OR REPLACE FUNCTION x509_extKeyUsages(bytea,boolean DEFAULT TRUE) RETURNS SETOF text
 	AS 'MODULE_PATHNAME' LANGUAGE c IMMUTABLE;
diff --git a/libx509pq.c b/libx509pq.c
index fc73527..44c96f9 100644
--- a/libx509pq.c
+++ b/libx509pq.c
@@ -16,6 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
+
 #include "c.h"
 #include "postgres.h"
 #include "plpgsql.h"	/* _PG_init() */
@@ -29,6 +31,52 @@
 PG_MODULE_MAGIC;
 #endif
 
+
+#ifdef _WIN32
+#define timegm _mkgmtime
+
+PGDLLEXPORT Datum x509_altnames(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_altnames_raw(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_anynameswithnuls(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_authorityinfoaccess(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_authoritykeyid(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_canissuecerts(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_certpolicies(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_commonname(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_crldistributionpoints(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_extensions(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_extkeyusages(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_getpathlenconstraint(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_hasextension(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_hasrocafingerprint(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_isekupermitted(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_ispolicypermitted(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_issuername(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_keyalgorithm(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_keysize(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_name(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_name_print(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_nameattributes(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_nameattributes_raw(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_notafter(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_notbefore(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_print(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_publickey(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_publickeymd5(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_rsamodulus(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_serialnumber(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_signaturehashalgorithm(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_signaturekeyalgorithm(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_subjectkeyidentifier(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_subjectname(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_tbscert_strip_ct_ext(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509_verify(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum x509pq_opensslversion(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ocspresponse_print(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum urldecode(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum urlencode(PG_FUNCTION_ARGS);
+#endif
+
 #include <string.h>
 #include <time.h>