diff --git a/include/wil/registry_helpers.h b/include/wil/registry_helpers.h
index 96446260..e8cf916b 100644
--- a/include/wil/registry_helpers.h
+++ b/include/wil/registry_helpers.h
@@ -76,6 +76,12 @@ namespace reg
 
         // Open key for reading and writing from 64-bit registry. Equivalent to KEY_ALL_ACCESS.
         readwrite64,
+
+        // Open key for reading from 32-bit registry.
+        read32,
+
+        // Open key for reading and writing from 32-bit registry. Equivalent to KEY_ALL_ACCESS.
+        readwrite32,
     };
 
     /// @cond
@@ -115,6 +121,10 @@ namespace reg
                 return KEY_READ | KEY_WOW64_64KEY;
             case key_access::readwrite64:
                 return KEY_ALL_ACCESS | KEY_WOW64_64KEY;
+            case key_access::read32:
+                return KEY_READ | KEY_WOW64_32KEY;
+            case key_access::readwrite32:
+                return KEY_ALL_ACCESS | KEY_WOW64_32KEY;
             }
             FAIL_FAST();
             RESULT_NORETURN_RESULT(0);