Index: include/m_plugins.h
===================================================================
--- include/m_plugins.h	(revision 8019)
+++ include/m_plugins.h	(working copy)
@@ -79,6 +79,12 @@
 //feature-dependent
 #define MS_PLUGINS_GETDISABLEDEFAULTARRAY	   "Plugins/GetDisableDefaultArray" 
 
+// plugins/hookservice
+// replaces a service function pointer and returns the old value
+// wPararm = (char *)service name
+// lParam = MIRANDASERVICE
+#define MS_PLUGINS_HOOKSERVICE					"Plugins/HookService"
+
 #endif // M_PLUGINS_H__
 
 
Index: src/core/modules.c
===================================================================
--- src/core/modules.c	(revision 8019)
+++ src/core/modules.c	(working copy)
@@ -722,6 +722,23 @@
 	return ret;
 }
 
+MIRANDASERVICE ModulesReplaceService(char *name, MIRANDASERVICE pfnNewService) {
+	TService *pService;
+	MIRANDASERVICE pfnService;
+	if (pfnNewService==NULL || name==NULL) return 0;
+
+	EnterCriticalSection(&csServices);
+	pService=FindServiceByName(name);
+	if (pService==NULL) {
+		LeaveCriticalSection(&csServices);
+		return 0;
+	}
+	pfnService = pService->pfnService;
+	pService->pfnService = pfnNewService;
+	LeaveCriticalSection(&csServices);
+	return pfnService;
+}
+
 int CallService(const char *name,WPARAM wParam,LPARAM lParam)
 {
 	TService *pService;
Index: src/modules/plugins/newplugins.c
===================================================================
--- src/modules/plugins/newplugins.c	(revision 8019)
+++ src/modules/plugins/newplugins.c	(working copy)
@@ -100,6 +100,7 @@
 #define PLUGINDISABLELIST "PluginDisable"
 
 int CallHookSubscribers( HANDLE hEvent, WPARAM wParam, LPARAM lParam );
+MIRANDASERVICE ModulesReplaceService(char *name, MIRANDASERVICE pfnNewService);
 
 int LoadDatabaseModule(void);
 void ListView_SetItemTextA( HWND hwndLV, int i, int iSubItem, char* pszText );
@@ -437,6 +438,11 @@
 	return (int) &pluginDefModList;
 }
 
+static int PluginsHookService(WPARAM wParam, LPARAM lParam) 
+{
+	return (int)ModulesReplaceService((char *)wParam, (MIRANDASERVICE)lParam);
+}
+
 // called in the first pass to create pluginEntry* structures and validate database plugins
 static BOOL scanPluginsDir (WIN32_FIND_DATAA * fd, char * path, WPARAM wParam, LPARAM lParam )
 {
@@ -1040,6 +1046,8 @@
 	//
 	CreateServiceFunction(MS_PLUGINS_ENUMDBPLUGINS, PluginsEnum);
 	CreateServiceFunction(MS_PLUGINS_GETDISABLEDEFAULTARRAY, PluginsGetDefaultArray);
+	CreateServiceFunction(MS_PLUGINS_HOOKSERVICE, PluginsHookService);
+
 	// make sure plugins can get internal core APIs
 	pluginCoreLink.CallService                    = CallService;
 	pluginCoreLink.ServiceExists                  = ServiceExists;