diff --git a/dlls/webservices/channel.c b/dlls/webservices/channel.c
index 0277d510b4d..799c15aed75 100644
--- a/dlls/webservices/channel.c
+++ b/dlls/webservices/channel.c
@@ -84,6 +84,15 @@ static const struct prop_desc channel_props[] =
     { sizeof(ULONG), FALSE }                                /* WS_CHANNEL_PROPERTY_MAX_HTTP_REQUEST_HEADERS_BUFFER_SIZE */
 };
 
+struct channel
+{
+    WS_CHANNEL_TYPE         type;
+    WS_CHANNEL_BINDING      binding;
+    WS_CHANNEL_STATE        state;
+    ULONG                   prop_count;
+    struct prop             prop[sizeof(channel_props)/sizeof(channel_props[0])];
+};
+
 static struct channel *alloc_channel(void)
 {
     static const ULONG count = sizeof(channel_props)/sizeof(channel_props[0]);
@@ -96,13 +105,14 @@ static struct channel *alloc_channel(void)
     return ret;
 }
 
-void free_channel( struct channel *channel )
+static void free_channel( struct channel *channel )
 {
+    if (!channel) return;
     heap_free( channel );
 }
 
-HRESULT create_channel( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding,
-                        const WS_CHANNEL_PROPERTY *properties, ULONG count, struct channel **ret )
+static HRESULT create_channel( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding,
+                               const WS_CHANNEL_PROPERTY *properties, ULONG count, struct channel **ret )
 {
     struct channel *channel;
     ULONG i, msg_size = 65536;
@@ -207,8 +217,14 @@ HRESULT WINAPI WsSetChannelProperty( WS_CHANNEL *handle, WS_CHANNEL_PROPERTY_ID
     return prop_set( channel->prop, channel->prop_count, id, value, size );
 }
 
-HRESULT open_channel( struct channel *channel, const WS_ENDPOINT_ADDRESS *endpoint )
+static HRESULT open_channel( struct channel *channel, const WS_ENDPOINT_ADDRESS *endpoint )
 {
+    if (endpoint->headers || endpoint->extensions || endpoint->identity)
+    {
+        FIXME( "headers, extensions or identity not supported\n" );
+        return E_NOTIMPL;
+    }
+
     channel->state = WS_CHANNEL_STATE_OPEN;
     return S_OK;
 }
@@ -231,7 +247,7 @@ HRESULT WINAPI WsOpenChannel( WS_CHANNEL *handle, const WS_ENDPOINT_ADDRESS *end
     return open_channel( channel, endpoint );
 }
 
-HRESULT close_channel( struct channel *channel )
+static HRESULT close_channel( struct channel *channel )
 {
     channel->state = WS_CHANNEL_STATE_CLOSED;
     return S_OK;
diff --git a/dlls/webservices/proxy.c b/dlls/webservices/proxy.c
index 5ff07f7f2c3..96ac1adb265 100644
--- a/dlls/webservices/proxy.c
+++ b/dlls/webservices/proxy.c
@@ -43,7 +43,7 @@ static const struct prop_desc proxy_props[] =
 
 struct proxy
 {
-    struct channel *channel;
+    WS_CHANNEL     *channel;
     ULONG           prop_count;
     struct prop     prop[sizeof(proxy_props)/sizeof(proxy_props[0])];
 };
@@ -62,11 +62,12 @@ static struct proxy *alloc_proxy(void)
 
 static void free_proxy( struct proxy *proxy )
 {
-    free_channel( proxy->channel );
+    if (!proxy) return;
+    WsFreeChannel( proxy->channel );
     heap_free( proxy );
 }
 
-static HRESULT create_proxy( struct channel *channel, const WS_PROXY_PROPERTY *properties, ULONG count,
+static HRESULT create_proxy( WS_CHANNEL *channel, const WS_PROXY_PROPERTY *properties, ULONG count,
                              WS_SERVICE_PROXY **handle )
 {
     struct proxy *proxy;
@@ -102,7 +103,7 @@ HRESULT WINAPI WsCreateServiceProxy( const WS_CHANNEL_TYPE type, const WS_CHANNE
                                      const ULONG channel_props_count, WS_SERVICE_PROXY **handle,
                                      WS_ERROR *error )
 {
-    struct channel *channel;
+    WS_CHANNEL *channel;
     HRESULT hr;
 
     TRACE( "%u %u %p %p %u %p %u %p %p\n", type, binding, desc, proxy_props, proxy_props_count,
@@ -112,11 +113,11 @@ HRESULT WINAPI WsCreateServiceProxy( const WS_CHANNEL_TYPE type, const WS_CHANNE
 
     if (!handle) return E_INVALIDARG;
 
-    if ((hr = create_channel( type, binding, channel_props, channel_props_count, &channel )) != S_OK)
-        return hr;
+    if ((hr = WsCreateChannel( type, binding, channel_props, channel_props_count, NULL, &channel,
+                               NULL )) != S_OK) return hr;
 
     if ((hr = create_proxy( channel, proxy_props, proxy_props_count, handle )) != S_OK)
-        free_channel( channel );
+        WsFreeChannel( channel );
 
     return hr;
 }
@@ -133,7 +134,7 @@ HRESULT WINAPI WsCreateServiceProxyFromTemplate( WS_CHANNEL_TYPE channel_type,
     const WS_CHANNEL_PROPERTY *channel_props = NULL;
     ULONG channel_props_count = 0;
     WS_CHANNEL_BINDING binding;
-    struct channel *channel;
+    WS_CHANNEL *channel;
     HRESULT hr;
 
     TRACE( "%u %p %u %u %p %u %p %u %p %p\n", channel_type, properties, count, type, value, size, desc,
@@ -172,12 +173,10 @@ HRESULT WINAPI WsCreateServiceProxyFromTemplate( WS_CHANNEL_TYPE channel_type,
         return E_NOTIMPL;
     }
 
-    if ((hr = create_channel( channel_type, binding, channel_props, channel_props_count, &channel )) != S_OK)
-        return hr;
-
-    if ((hr = create_proxy( channel, properties, count, handle )) != S_OK)
-        free_channel( channel );
+    if ((hr = WsCreateChannel( channel_type, binding, channel_props, channel_props_count, NULL,
+                               &channel, NULL )) != S_OK) return hr;
 
+    if ((hr = create_proxy( channel, properties, count, handle )) != S_OK) WsFreeChannel( channel );
     return hr;
 }
 
@@ -218,7 +217,8 @@ HRESULT WINAPI WsOpenServiceProxy( WS_SERVICE_PROXY *handle, const WS_ENDPOINT_A
     if (error) FIXME( "ignoring error parameter\n" );
     if (ctx) FIXME( "ignoring ctx parameter\n" );
 
-    return open_channel( proxy->channel, endpoint );
+    if (!handle || !endpoint) return E_INVALIDARG;
+    return WsOpenChannel( proxy->channel, endpoint, NULL, NULL );
 }
 
 /**************************************************************************
@@ -232,7 +232,8 @@ HRESULT WINAPI WsCloseServiceProxy( WS_SERVICE_PROXY *handle, const WS_ASYNC_CON
     if (error) FIXME( "ignoring error parameter\n" );
     if (ctx) FIXME( "ignoring ctx parameter\n" );
 
-    return close_channel( proxy->channel );
+    if (!handle) return E_INVALIDARG;
+    return WsCloseChannel( proxy->channel, NULL, NULL );
 }
 
 /**************************************************************************
diff --git a/dlls/webservices/webservices_private.h b/dlls/webservices/webservices_private.h
index 9da0e1f308b..42cd67c0258 100644
--- a/dlls/webservices/webservices_private.h
+++ b/dlls/webservices/webservices_private.h
@@ -90,21 +90,6 @@ void prop_init( const struct prop_desc *, ULONG, struct prop *, void * ) DECLSPE
 HRESULT prop_set( const struct prop *, ULONG, ULONG, const void *, ULONG ) DECLSPEC_HIDDEN;
 HRESULT prop_get( const struct prop *, ULONG, ULONG, void *, ULONG ) DECLSPEC_HIDDEN;
 
-struct channel
-{
-    WS_CHANNEL_TYPE         type;
-    WS_CHANNEL_BINDING      binding;
-    WS_CHANNEL_STATE        state;
-    ULONG                   prop_count;
-    struct prop             prop[50];
-};
-
-HRESULT create_channel( WS_CHANNEL_TYPE, WS_CHANNEL_BINDING, const WS_CHANNEL_PROPERTY *,
-                        ULONG, struct channel ** ) DECLSPEC_HIDDEN;
-void free_channel( struct channel * ) DECLSPEC_HIDDEN;
-HRESULT open_channel( struct channel *, const WS_ENDPOINT_ADDRESS * ) DECLSPEC_HIDDEN;
-HRESULT close_channel( struct channel * ) DECLSPEC_HIDDEN;
-
 static inline BOOL is_nil_value( const char *value, ULONG size )
 {
     ULONG i;