diff --git a/src/main.cpp b/src/main.cpp
index cdebc42..2aa342e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -182,6 +182,11 @@ int main(int argc, char *argv[])
 			{
 				svc.stop();
 			}
+			else
+			{
+				std::cerr << "No such service command." << std::endl;
+				return -1;
+			}
 		}
 		catch (const UDPT::OSError& ex)
 		{
diff --git a/src/service.cpp b/src/service.cpp
index 9c146c2..d61aacf 100644
--- a/src/service.cpp
+++ b/src/service.cpp
@@ -77,12 +77,24 @@ namespace UDPT
 
 	void Service::start()
 	{
-
+		std::shared_ptr<void> hSvc = getService(SERVICE_START);
+		BOOL bRes = ::StartService(reinterpret_cast<SC_HANDLE>(hSvc.get()), 0, NULL);
+		if (FALSE == bRes)
+		{
+			throw OSError();
+		}
 	}
 
 	void Service::stop()
 	{
+		SERVICE_STATUS status = { 0 };
 
+		std::shared_ptr<void> hSvc = getService(SERVICE_STOP);
+		BOOL bRes = ::ControlService(reinterpret_cast<SC_HANDLE>(hSvc.get()), SERVICE_CONTROL_STOP, &status);
+		if (FALSE == bRes)
+		{
+			throw OSError();
+		}
 	}
 
 	void Service::setup()