diff --git a/include/webservices.h b/include/webservices.h
index fc259c11f5d..aa5fdf4c2e7 100644
--- a/include/webservices.h
+++ b/include/webservices.h
@@ -1040,6 +1040,11 @@ typedef enum {
     WS_FAULT_TO_HEADER      = 7
 } WS_HEADER_TYPE;
 
+typedef enum {
+    WS_REPEATING_HEADER = 1,
+    WS_SINGLETON_HEADER = 2
+} WS_REPEATING_HEADER_OPTION;
+
 typedef enum {
     WS_DNS_ENDPOINT_IDENTITY_TYPE       = 1,
     WS_UPN_ENDPOINT_IDENTITY_TYPE       = 2,
@@ -1584,11 +1589,17 @@ void WINAPI WsFreeReader(WS_XML_READER*);
 void WINAPI WsFreeServiceProxy(WS_SERVICE_PROXY*);
 void WINAPI WsFreeWriter(WS_XML_WRITER*);
 HRESULT WINAPI WsGetChannelProperty(WS_CHANNEL*, WS_CHANNEL_PROPERTY_ID, void*, ULONG, WS_ERROR*);
+HRESULT WINAPI WsGetCustomHeader(WS_MESSAGE*, const WS_ELEMENT_DESCRIPTION*, WS_REPEATING_HEADER_OPTION,
+                                 ULONG, WS_READ_OPTION, WS_HEAP*, void*, ULONG, ULONG*, WS_ERROR*);
 HRESULT WINAPI WsGetDictionary(WS_ENCODING, WS_XML_DICTIONARY**, WS_ERROR*);
 HRESULT WINAPI WsGetErrorProperty(WS_ERROR*, WS_ERROR_PROPERTY_ID, void*, ULONG);
 HRESULT WINAPI WsGetErrorString(WS_ERROR*, ULONG, WS_STRING*);
+HRESULT WINAPI WsGetHeader(WS_MESSAGE*, WS_HEADER_TYPE, WS_TYPE, WS_READ_OPTION, WS_HEAP*, void*,
+                           ULONG, WS_ERROR*);
 HRESULT WINAPI WsGetHeapProperty(WS_HEAP*, WS_HEAP_PROPERTY_ID, void*, ULONG, WS_ERROR*);
 HRESULT WINAPI WsGetListenerProperty(WS_LISTENER*, WS_LISTENER_PROPERTY_ID, void*, ULONG, WS_ERROR*);
+HRESULT WINAPI WsGetMappedHeader(WS_MESSAGE*, const WS_XML_STRING*, WS_REPEATING_HEADER_OPTION,
+                                 ULONG, WS_TYPE, WS_READ_OPTION, WS_HEAP*, void*, ULONG, WS_ERROR*);
 HRESULT WINAPI WsGetMessageProperty(WS_MESSAGE*, WS_MESSAGE_PROPERTY_ID, void*, ULONG, WS_ERROR*);
 HRESULT WINAPI WsGetNamespaceFromPrefix(WS_XML_READER*, const WS_XML_STRING*, BOOL,
                                         const WS_XML_STRING**, WS_ERROR*);