diff --git a/cpp/platform/impl/windows/BUILD b/cpp/platform/impl/windows/BUILD
index d07e44ac..01e2f7b8 100644
--- a/cpp/platform/impl/windows/BUILD
+++ b/cpp/platform/impl/windows/BUILD
@@ -92,6 +92,7 @@ cc_library(
         "bluetooth_classic_server_socket.cc",
         "bluetooth_classic_socket.cc",
         "platform.cc",
+        "utils.cc",
     ],
     hdrs = [
         "bluetooth_classic.h",
diff --git a/windows/core_adapter.cc b/windows/core_adapter.cc
index f42d161b..478b0ad0 100644
--- a/windows/core_adapter.cc
+++ b/windows/core_adapter.cc
@@ -20,13 +20,10 @@ namespace location {
 namespace nearby {
 namespace connections {
 
-Core* InitCoreWithServiceControllerFactory(
-    std::function<ServiceController*()> factory) {
-  return new Core(factory);
+Core* InitCore(ServiceControllerRouter* router) {
+  return new Core(router);
 }
 
-Core* InitCore() { return new Core(); }
-
 void CloseCore(Core* pCore) {
   if (pCore) {
     pCore->StopAllEndpoints(