diff --git a/include/service_hook.h b/include/service_hook.h
index d2badbc52..e2cf160ea 100644
--- a/include/service_hook.h
+++ b/include/service_hook.h
@@ -1,6 +1,6 @@
-/* Interface to windows system interface. Provides entry points
-   to service system when service is initialized. This allows
-   user to specify code to run when service is triggered.       */
+/* Interface to windows system interface. Provides entry points
+   to service system when service is initialized. This allows
+   user to specify code to run when service is triggered.       */
 #ifndef SERVICE_HOOK_DEFINED
 #define SERVICE_HOOK_DEFINED
 
@@ -44,7 +44,9 @@ SERVICE_EXPORT void SetupServiceThread( TEXTSTR name, uintptr_t (CPROC*Start)( P
 SERVICE_EXPORT void ServiceInstall( CTEXTSTR ServiceName );
 
 // install the current executable as a service of the specified name.  (and starts the service)
-SERVICE_EXPORT void ServiceInstallEx( CTEXTSTR ServiceName, CTEXTSTR description, CTEXTSTR extraArgs );
+// options is
+//    1 - interact with desktop
+SERVICE_EXPORT void ServiceInstallEx( CTEXTSTR ServiceName, CTEXTSTR description, CTEXTSTR extraArgs, int opts );
 
 // uninstall the current executable as a service of the specified name.  (and stops the service)
 SERVICE_EXPORT void ServiceUninstall( CTEXTSTR ServiceName );