diff --git a/reactos/dll/directx/dsound_new/directsound.c b/reactos/dll/directx/dsound_new/directsound.c
index c2e16879316..12b03cf024c 100644
--- a/reactos/dll/directx/dsound_new/directsound.c
+++ b/reactos/dll/directx/dsound_new/directsound.c
@@ -353,6 +353,14 @@ IDirectSound8_fnVerifyCertification(
     LPDIRECTSOUND8 iface,
     LPDWORD pdwCertified)
 {
+    LPCDirectSoundImpl This = (LPCDirectSoundImpl)CONTAINING_RECORD(iface, CDirectSoundImpl, lpVtbl);
+
+    if (!This->bInitialized)
+    {
+        /* object not yet initialized */
+        return DSERR_UNINITIALIZED;
+    }
+
     UNIMPLEMENTED;
     return DS_CERTIFIED;
 }
diff --git a/reactos/dll/directx/dsound_new/dsound.c b/reactos/dll/directx/dsound_new/dsound.c
index a0f5c3737e3..e8322ebbc31 100644
--- a/reactos/dll/directx/dsound_new/dsound.c
+++ b/reactos/dll/directx/dsound_new/dsound.c
@@ -22,10 +22,18 @@ static INTERFACE_TABLE InterfaceTable[] =
         &CLSID_DirectSoundCapture,
         NewDirectSoundCapture
     },
+    {
+        &CLSID_DirectSoundCapture8,
+        NewDirectSoundCapture
+    },
     {
         &CLSID_DirectSound,
         NewDirectSound
     },
+    {
+        &CLSID_DirectSound8,
+        NewDirectSound
+    },
     {
         NULL,
         NULL