diff --git a/include/wininet.h b/include/wininet.h
index a0ec408..be7c6e0 100644
--- a/include/wininet.h
+++ b/include/wininet.h
@@ -591,9 +591,13 @@
 #define INTERNET_OPTION_CODEPAGE_PATH           100
 #define INTERNET_OPTION_CODEPAGE_EXTRA          101
 #define INTERNET_OPTION_IDN                     102
+#define INTERNET_OPTION_MAX_CONNS_PER_PROXY     103
+#define INTERNET_OPTION_SUPPRESS_SERVER_AUTH    104
+#define INTERNET_OPTION_SERVER_CERT_CHAIN_CONTEXT 105
+
 
 #define INTERNET_FIRST_OPTION                   INTERNET_OPTION_CALLBACK
-#define INTERNET_LAST_OPTION                    INTERNET_OPTION_DATAFILE_EXT
+#define INTERNET_LAST_OPTION                    INTERNET_OPTION_SERVER_CERT_CHAIN_CONTEXT
 
 #define INTERNET_PRIORITY_FOREGROUND            1000
 #define INTERNET_HANDLE_TYPE_INTERNET           1