diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index b6b9b2018..955f4e4ac 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -5379,4 +5379,8 @@ HFONT CreateFont(
   <define name="SCODE_FACILITY(sc)" value="(((sc) &gt;&gt; 16) &amp; 0x1fff)"/>
   <!-- DWORD SCODE_SEVERITY( SCODE sc );-->
   <define name="SCODE_SEVERITY(sc)" value="(((sc) &gt;&gt; 31) &amp; 0x1)"/>
+  <!-- AccCtrl.h: Indicates an access-allowed entry. -->
+  <define name="ACTRL_ACCESS_ALLOWED" value="0x00000000"/>
+  <!-- AccCtrl.h: Indicates an access-denied entry. -->
+  <define name="ACTRL_ACCESS_DENIED" value="0x10000000"/>
 </def>