diff --git a/reactos/include/psdk/sal_old.h b/reactos/include/psdk/sal_old.h
index aecac8bec14..61323075240 100644
--- a/reactos/include/psdk/sal_old.h
+++ b/reactos/include/psdk/sal_old.h
@@ -217,6 +217,7 @@
 #define __deref_out_ecount(size) __deref_ecount(size) __post __deref __valid __refparam
 #define __deref_out_nz __deref_out
 #define __deref_out_nz_opt __deref_out_opt
+#define __deref_out_range(x,y) /* FIXME */
 #define __deref_out_opt __deref_out __post __deref __exceptthat __maybenull
 #define __deref_out_z __post __deref __valid __refparam __post __deref __nullterminated
 #define __deref_out_z_opt __post __deref __valid __refparam __execeptthat __maybenull __post __deref __nullterminated
diff --git a/reactos/include/psdk/specstrings.h b/reactos/include/psdk/specstrings.h
index 7d08f26522c..071324f7545 100644
--- a/reactos/include/psdk/specstrings.h
+++ b/reactos/include/psdk/specstrings.h
@@ -27,6 +27,7 @@
 #include <driverspecs.h>
 
 #define __field_bcount(size) __notnull __byte_writableTo(size)
+#define __field_bcount_full(size) __notnull __byte_writableTo(size) __byte_readableTo(size)
 #define __field_ecount(size) __notnull __elem_writableTo(size)
 #define __post_invalid _Post_ __notvalid