diff --git a/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c b/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c
new file mode 100644
index 00000000000..6d936d1d8c3
--- /dev/null
+++ b/reactos/drivers/wdm/audio/backpln/portcls/propertyhandler.c
@@ -0,0 +1,54 @@
+#include "private.h"
+
+NTSTATUS
+NTAPI
+PinPropertyHandler(
+    IN PIRP Irp,
+    IN PKSIDENTIFIER  Request,
+    IN OUT PVOID  Data)
+{
+    NTSTATUS Status = STATUS_UNSUCCESSFUL;
+
+    switch(Request->Id)
+    {
+        case KSPROPERTY_PIN_CTYPES:
+        case KSPROPERTY_PIN_DATAFLOW:
+        case KSPROPERTY_PIN_DATARANGES:
+        case KSPROPERTY_PIN_INTERFACES:
+        case KSPROPERTY_PIN_MEDIUMS:
+        case KSPROPERTY_PIN_COMMUNICATION:
+        case KSPROPERTY_PIN_CATEGORY:
+        case KSPROPERTY_PIN_NAME:
+            // KsPinPropertyHandler
+            break;
+        case KSPROPERTY_PIN_DATAINTERSECTION:
+        case KSPROPERTY_PIN_CINSTANCES:
+        case KSPROPERTY_PIN_GLOBALCINSTANCES:
+        case KSPROPERTY_PIN_NECESSARYINSTANCES:
+        case KSPROPERTY_PIN_PHYSICALCONNECTION:
+        case KSPROPERTY_PIN_CONSTRAINEDDATARANGES:
+            DPRINT1("Unhandled %x\n", Request->Id);
+            Status = STATUS_SUCCESS;
+            break;
+        default:
+            Status = STATUS_NOT_FOUND;
+    }
+
+
+    return Status;
+}
+
+
+NTSTATUS
+NTAPI
+TopologyPropertyHandler(
+    IN PIRP Irp,
+    IN PKSIDENTIFIER  Request,
+    IN OUT PVOID  Data)
+{
+    return KsTopologyPropertyHandler(Irp,
+                                     Request,
+                                     Data,
+                                     NULL /* FIXME */);
+}
+