diff --git a/ext/mcrypt/mcrypt.c b/ext/mcrypt/mcrypt.c
index b3c711b5297..6bbc4e200b2 100644
--- a/ext/mcrypt/mcrypt.c
+++ b/ext/mcrypt/mcrypt.c
@@ -27,8 +27,7 @@
 #if HAVE_LIBMCRYPT
 
 #if PHP_WIN32
-# include <Wincrypt.h>
-# include <Ntsecapi.h>
+# include "win32/winutil.h"
 #endif
 
 #include "php_mcrypt.h"
@@ -1391,23 +1390,14 @@ PHP_FUNCTION(mcrypt_create_iv)
 	
 	if (source == RANDOM || source == URANDOM) {
 #if PHP_WIN32
-			/* random/urandom equivalent on Windows */
-			HCRYPTPROV     hCryptProv;
-			BYTE *iv_b = (BYTE *) iv;
-
-			/* It could be done using LoadLibrary but as we rely on 2k+ for 5.3, cleaner to use a clear dependency (Advapi32) and a 
-				standard API call (no f=getAddr..; f();) */
-			if(!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
-				efree(iv);
-				php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot open random device");
-				RETURN_FALSE;
-			}
-			if(!CryptGenRandom(hCryptProv, size,  iv_b)) {
-				efree(iv);
-				php_error_docref(NULL TSRMLS_CC, E_ERROR, "Could not gather sufficient random data");
-				RETURN_FALSE;
-			}
-			n = size;
+		/* random/urandom equivalent on Windows */
+		BYTE *iv_b = (BYTE *) iv;
+		if (php_win32_get_random_bytes(iv_b, (size_t) size) == FAILURE){
+			efree(iv);
+			php_error_docref(NULL TSRMLS_CC, E_ERROR, "Could not gather sufficient random data");
+			RETURN_FALSE;
+		}
+		n = size;
 #else
 		int    fd;
 		size_t read_bytes = 0;