diff --git a/reactos/include/psdk/winbase.h b/reactos/include/psdk/winbase.h
index 1c44f18f77b..ffb9d360078 100644
--- a/reactos/include/psdk/winbase.h
+++ b/reactos/include/psdk/winbase.h
@@ -326,6 +326,9 @@ extern "C" {
 #define DONT_RESOLVE_DLL_REFERENCES 1
 #define LOAD_LIBRARY_AS_DATAFILE 2
 #define LOAD_WITH_ALTERED_SEARCH_PATH 8
+#define LOAD_IGNORE_CODE_AUTHZ_LEVEL 16
+#define LOAD_LIBRARY_AS_IMAGE_RESOURCE 32
+#define LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE 64
 #define LMEM_FIXED 0
 #define LMEM_MOVEABLE 2
 #define LMEM_NONZEROLHND 2