diff --git a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
index b15f9ed89fe..24c458da344 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
+++ b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
@@ -33,5 +33,6 @@
 	<file>miniport.c</file>
 	<file>miniport_dmus.c</file>
 	<file>miniport_fmsynth.c</file>
+	<file>version.c</file>
 	<file>portcls.rc</file>
 </module>
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/registry.c b/reactos/drivers/wdm/audio/backpln/portcls/registry.c
index 722860153ca..3cb7342dd27 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/registry.c
+++ b/reactos/drivers/wdm/audio/backpln/portcls/registry.c
@@ -253,6 +253,22 @@ PcNewRegistryKey(
 
         Status = ZwOpenKey(&hHandle, DesiredAccess, ObjectAttributes);
     }
+    else if (RegistryKeyType == DeviceRegistryKey ||
+             RegistryKeyType == DriverRegistryKey ||
+             RegistryKeyType == HwProfileRegistryKey)
+    {
+        if (RegistryKeyType == HwProfileRegistryKey)
+        {
+             /* IoOpenDeviceRegistryKey used different constant */
+            RegistryKeyType = PLUGPLAY_REGKEY_CURRENT_HWPROFILE;
+        }
+
+        Status = IoOpenDeviceRegistryKey(DeviceObject, RegistryKeyType, DesiredAccess, &hHandle);
+    }
+    else if (RegistryKeyType == DeviceInterfaceRegistryKey)
+    {
+        /* FIXME */
+    }
 
     if (!NT_SUCCESS(Status))
     {
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/version.c b/reactos/drivers/wdm/audio/backpln/portcls/version.c
new file mode 100644
index 00000000000..92ea1a9a740
--- /dev/null
+++ b/reactos/drivers/wdm/audio/backpln/portcls/version.c
@@ -0,0 +1,96 @@
+#include "private.h"
+
+
+typedef struct CResourceList
+{
+    IPortClsVersionVtbl *lpVtbl;
+    LONG ref;
+}IPortClsVersionImpl;
+
+const GUID IID_IPortClsVersion;
+
+//---------------------------------------------------------------
+// IPortClsVersion interface functions
+//
+
+NTSTATUS
+NTAPI
+IPortClsVersion_fnQueryInterface(
+    IPortClsVersion * iface,
+    IN  REFIID refiid,
+    OUT PVOID* Output)
+{
+    IPortClsVersionImpl * This = (IPortClsVersionImpl*)iface;
+
+    if (IsEqualGUIDAligned(refiid, &IID_IPortClsVersion) ||
+        IsEqualGUIDAligned(refiid, &IID_IUnknown))
+    {
+        *Output = &This->lpVtbl;
+        _InterlockedIncrement(&This->ref);
+        return STATUS_SUCCESS;
+    }
+    return STATUS_UNSUCCESSFUL;
+}
+
+ULONG
+NTAPI
+IPortClsVersion_fnAddRef(
+    IPortClsVersion * iface)
+{
+    IPortClsVersionImpl * This = (IPortClsVersionImpl*)iface;
+
+    return InterlockedIncrement(&This->ref);
+}
+
+ULONG
+NTAPI
+IPortClsVersion_fnRelease(
+    IPortClsVersion * iface)
+{
+    IPortClsVersionImpl * This = (IPortClsVersionImpl*)iface;
+
+    InterlockedDecrement(&This->ref);
+
+    if (This->ref == 0)
+    {
+        ExFreePoolWithTag(This, TAG_PORTCLASS);
+        return 0;
+    }
+    /* Return new reference count */
+    return This->ref;
+}
+
+DWORD
+NTAPI
+IPortClsVersion_fnGetVersion(
+    IPortClsVersion * iface)
+{
+    return kVersionWinXP_UAAQFE;
+}
+
+static IPortClsVersionVtbl vt_PortClsVersion =
+{
+    /* IUnknown methods */
+    IPortClsVersion_fnQueryInterface,
+    IPortClsVersion_fnAddRef,
+    IPortClsVersion_fnRelease,
+    IPortClsVersion_fnGetVersion
+};
+
+NTSTATUS NewPortClsVersion(
+    OUT PPORTCLSVERSION * OutVersion)
+{
+    IPortClsVersionImpl * This = ExAllocatePoolWithTag(NonPagedPool, sizeof(IPortClsVersionImpl), TAG_PORTCLASS);
+
+    if (!This)
+        return STATUS_INSUFFICIENT_RESOURCES;
+
+    This->lpVtbl = &vt_PortClsVersion;
+    This->ref = 1;
+    *OutVersion = (PPORTCLSVERSION)&This->lpVtbl;
+
+    return STATUS_SUCCESS;
+
+}
+
+