diff --git a/include/compat/msvc/pre1600/stdint.h b/include/compat/msvc/pre1600/stdint.h
index 4fe0ef9..3a5535c 100644
--- a/include/compat/msvc/pre1600/stdint.h
+++ b/include/compat/msvc/pre1600/stdint.h
@@ -37,6 +37,23 @@
 #ifndef _MSC_STDINT_H_ // [
 #define _MSC_STDINT_H_
 
+#define _In_reads_(size)
+#define _In_reads_opt_(size)
+#define _In_reads_bytes_(size)
+#define _In_reads_bytes_opt_(size)
+#define _Out_writes_(size)
+#define _Out_writes_opt_(size)
+#define _Out_writes_to_opt_(size,count)
+#define _Out_writes_bytes_(size)
+#define _Out_writes_bytes_opt_(size)
+#define _Outptr_
+#define _Outptr_result_maybenull_
+#define _Outptr_opt_result_maybenull_
+#define _COM_Outptr_
+#define _COM_Outptr_opt_
+#define _COM_Outptr_opt_result_maybenull_
+#define _Field_size_bytes_full_(size)
+
 #if _MSC_VER > 1000
 #pragma once
 #endif