diff --git a/configure b/configure
index 339bfc56efd..f3247bd2e81 100755
--- a/configure
+++ b/configure
@@ -18667,6 +18667,7 @@ wine_fn_config_dll rtutils enable_rtutils implib
 wine_fn_config_dll samlib enable_samlib
 wine_fn_config_dll sane.ds enable_sane_ds clean
 wine_fn_config_dll sapi enable_sapi clean
+wine_fn_config_test dlls/sapi/tests sapi_test
 wine_fn_config_dll scarddlg enable_scarddlg
 wine_fn_config_dll sccbase enable_sccbase
 wine_fn_config_dll schannel enable_schannel
diff --git a/configure.ac b/configure.ac
index e1dc5227651..b958ff3f0d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3448,6 +3448,7 @@ WINE_CONFIG_DLL(rtutils,,[implib])
 WINE_CONFIG_DLL(samlib)
 WINE_CONFIG_DLL(sane.ds,,[clean])
 WINE_CONFIG_DLL(sapi,,[clean])
+WINE_CONFIG_TEST(dlls/sapi/tests)
 WINE_CONFIG_DLL(scarddlg)
 WINE_CONFIG_DLL(sccbase)
 WINE_CONFIG_DLL(schannel)
diff --git a/dlls/sapi/tests/Makefile.in b/dlls/sapi/tests/Makefile.in
new file mode 100644
index 00000000000..bf924d7ed99
--- /dev/null
+++ b/dlls/sapi/tests/Makefile.in
@@ -0,0 +1,5 @@
+TESTDLL   = sapi.dll
+IMPORTS   = ole32 user32 advapi32
+
+C_SRCS = \
+	token.c
diff --git a/dlls/sapi/tests/token.c b/dlls/sapi/tests/token.c
new file mode 100644
index 00000000000..8c445ea1f6a
--- /dev/null
+++ b/dlls/sapi/tests/token.c
@@ -0,0 +1,57 @@
+/*
+ * Speech API (SAPI) token tests.
+ *
+ * Copyright (C) 2017 Huw Davies
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#define COBJMACROS
+
+#include "initguid.h"
+#include "sapiddk.h"
+#include "sperror.h"
+
+#include "wine/test.h"
+
+static void test_data_key(void)
+{
+    ISpRegDataKey *data_key;
+    HRESULT hr;
+    HKEY key;
+    LONG res;
+
+    hr = CoCreateInstance( &CLSID_SpDataKey, NULL, CLSCTX_INPROC_SERVER,
+                           &IID_ISpRegDataKey, (void **)&data_key );
+    ok( hr == S_OK, "got %08x\n", hr );
+
+    res = RegCreateKeyExA( HKEY_CURRENT_USER, "Software\\Winetest\\sapi", 0, NULL, 0, KEY_ALL_ACCESS,
+                           NULL, &key, NULL );
+    ok( res == ERROR_SUCCESS, "got %d\n", res );
+
+    hr = ISpRegDataKey_SetKey( data_key, key, FALSE );
+    ok( hr == S_OK, "got %08x\n", hr );
+    hr = ISpRegDataKey_SetKey( data_key, key, FALSE );
+    ok( hr == SPERR_ALREADY_INITIALIZED, "got %08x\n", hr );
+
+    ISpRegDataKey_Release( data_key );
+}
+
+START_TEST(token)
+{
+    CoInitialize( NULL );
+    test_data_key();
+    CoUninitialize();
+}
diff --git a/dlls/sapi/token.c b/dlls/sapi/token.c
index bcacba82216..a274f5ff69d 100644
--- a/dlls/sapi/token.c
+++ b/dlls/sapi/token.c
@@ -39,6 +39,9 @@ struct data_key
 {
     ISpRegDataKey ISpRegDataKey_iface;
     LONG ref;
+
+    HKEY key;
+    BOOL read_only;
 };
 
 struct data_key *impl_from_ISpRegDataKey( ISpRegDataKey *iface )
@@ -84,6 +87,7 @@ static ULONG WINAPI data_key_Release( ISpRegDataKey *iface )
 
     if (!ref)
     {
+        if (This->key) RegCloseKey( This->key );
         heap_free( This );
     }
 
@@ -175,8 +179,15 @@ static HRESULT WINAPI data_key_EnumValues( ISpRegDataKey *iface,
 static HRESULT WINAPI data_key_SetKey( ISpRegDataKey *iface,
                                        HKEY key, BOOL read_only )
 {
-    FIXME( "stub\n" );
-    return E_NOTIMPL;
+    struct data_key *This = impl_from_ISpRegDataKey( iface );
+
+    TRACE( "(%p)->(%p %d)\n", This, key, read_only );
+
+    if (This->key) return SPERR_ALREADY_INITIALIZED;
+
+    This->key = key;
+    This->read_only = read_only;
+    return S_OK;
 }
 
 const struct ISpRegDataKeyVtbl data_key_vtbl =
@@ -207,6 +218,8 @@ HRESULT data_key_create( IUnknown *outer, REFIID iid, void **obj )
     if (!This) return E_OUTOFMEMORY;
     This->ISpRegDataKey_iface.lpVtbl = &data_key_vtbl;
     This->ref = 1;
+    This->key = NULL;
+    This->read_only = FALSE;
 
     hr = ISpRegDataKey_QueryInterface( &This->ISpRegDataKey_iface, iid, obj );