Define some extra SHFGI values.
diff --git a/include/shellapi.h b/include/shellapi.h
index 50960ba..4bb283d 100644
--- a/include/shellapi.h
+++ b/include/shellapi.h
@@ -115,9 +115,8 @@
#define SHGFI_SHELLICONSIZE 0x000000004 /* get shell size icon */
#define SHGFI_PIDL 0x000000008 /* pszPath is a pidl */
#define SHGFI_USEFILEATTRIBUTES 0x000000010 /* use passed dwFileAttribute */
-#define SHGFI_UNKNOWN1 0x000000020
-#define SHGFI_UNKNOWN2 0x000000040
-#define SHGFI_UNKNOWN3 0x000000080
+#define SHGFI_ADDOVERLAYS 0x000000020
+#define SHGFI_OVERLAYINDEX 0x000000040
#define SHGFI_ICON 0x000000100 /* get icon */
#define SHGFI_DISPLAYNAME 0x000000200 /* get display name */
#define SHGFI_TYPENAME 0x000000400 /* get type name */