- fixed: process should shut down when command is empty.

- fixed: when command was empty quotes ("") daemon crashed.

src/lib/platform/CMSWindowsRelauncher.cpp

@@ -175,6 +175,7 @@ CMSWindowsRelauncher::mainLoop(void*)
 				// anything yet, so don't show it as a warning, only show it as
 				// debug to devs to let them know why nothing happened.
 				LOG((CLOG_DEBUG "nothing to launch, no command specified."));
+				shutdownExistingProcesses();
 				continue;
 			}
 
@@ -231,7 +232,7 @@ CMSWindowsRelauncher::isProcessRunning()
 		GetExitCodeProcess(m_processInfo.hProcess, &exitCode);
 		running = (exitCode == STILL_ACTIVE);
 
-		if (!running) {
+		if (!running && !m_command.empty()) {
 			m_failures++;
 			LOG((CLOG_INFO
 				"detected application not running, pid=%d, failures=%d",

src/lib/synergy/CDaemonApp.cpp

@@ -298,6 +298,13 @@ CDaemonApp::handleIpcMessage(const CEvent& e, void*)
 		case kIpcCommand: {
 			CIpcCommandMessage* cm = static_cast<CIpcCommandMessage*>(m);
 			CString command = cm->command();
+
+			// if empty quotes, clear.
+			if (command == "\"\"") {
+				command.clear();
+			}
+
+			if (!command.empty()) {
 				LOG((CLOG_DEBUG "new command, elevate=%d command=%s", cm->elevate(), command.c_str()));
 
 				CString debugArg("--debug");
@@ -317,6 +324,10 @@ CDaemonApp::handleIpcMessage(const CEvent& e, void*)
 						LOG((CLOG_ERR "failed to save LogLevel setting, %s", e.what().c_str()));
 					}
 				}
+			}
+			else {
+				LOG((CLOG_DEBUG "empty command, elevate=%d", cm->elevate()));
+			}
 
 			try {
 				// store command in system settings. this is used when the daemon