diff --git a/include/wincrypt.h b/include/wincrypt.h
index bcb67ff0910..5c0fb0fc0b0 100644
--- a/include/wincrypt.h
+++ b/include/wincrypt.h
@@ -2833,6 +2833,12 @@ typedef struct _CTL_FIND_SUBJECT_PARA
 #define CRYPT_STRING_BASE64X509CRLHEADER 0x00000009
 #define CRYPT_STRING_HEXADDR             0x0000000a
 #define CRYPT_STRING_HEXASCIIADDR        0x0000000b
+#define CRYPT_STRING_HEXRAW              0x0000000c
+#define CRYPT_STRING_BASE64URI           0x0000000d
+
+#define CRYPT_STRING_PERCENTESCAPE       0x08000000
+#define CRYPT_STRING_HASHDATA            0x10000000
+#define CRYPT_STRING_STRICT              0x20000000
 #define CRYPT_STRING_NOCRLF              0x40000000
 #define CRYPT_STRING_NOCR                0x80000000