don't attempt to run in service mode if service is not installed.

NzbDrone.App.Test/RouterTest.cs

@@ -62,7 +62,7 @@ namespace NzbDrone.App.Test
         [TestCase(ApplicationModes.InstallService)]
         [TestCase(ApplicationModes.UninstallService)]
         [TestCase(ApplicationModes.Help)]
-        public void Route_should_call_service_start_when_run_in_service_more(ApplicationModes applicationModes)
+        public void Route_should_call_service_start_when_run_in_service_mode(ApplicationModes applicationModes)
         {
             var envMock = Mocker.GetMock<IRuntimeInfo>();
             var serviceProvider = Mocker.GetMock<IServiceProvider>();
@@ -70,6 +70,7 @@ namespace NzbDrone.App.Test
             envMock.SetupGet(c => c.IsUserInteractive).Returns(false);
 
             serviceProvider.Setup(c => c.Run(It.IsAny<ServiceBase>()));
+            serviceProvider.Setup(c => c.ServiceExist(It.IsAny<string>())).Returns(true);
 
             Subject.Route(applicationModes);
 

NzbDrone.Common/ServiceProvider.cs

@@ -15,7 +15,6 @@ namespace NzbDrone.Common
         void Install(string serviceName);
         void UnInstall(string serviceName);
         void Run(ServiceBase service);
-        ServiceController GetService(string serviceName);
         void Stop(string serviceName);
         void Start(string serviceName);
     }
@@ -26,7 +25,7 @@ namespace NzbDrone.Common
 
         private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
 
-        public virtual bool ServiceExist(string name)
+        public bool ServiceExist(string name)
         {
             Logger.Debug("Checking if service {0} exists.", name);
             return
@@ -34,7 +33,7 @@ namespace NzbDrone.Common
                     s => String.Equals(s.ServiceName, name, StringComparison.InvariantCultureIgnoreCase));
         }
 
-        public virtual bool IsServiceRunning(string name)
+        public bool IsServiceRunning(string name)
         {
             Logger.Debug("Checking if '{0}' service is running", name);
 
@@ -42,13 +41,13 @@ namespace NzbDrone.Common
                 .SingleOrDefault(s => String.Equals(s.ServiceName, name, StringComparison.InvariantCultureIgnoreCase));
 
             return service != null && (
-                service.Status != ServiceControllerStatus.Stopped || 
-                service.Status == ServiceControllerStatus.StopPending || 
-                service.Status == ServiceControllerStatus.Paused || 
+                service.Status != ServiceControllerStatus.Stopped ||
+                service.Status == ServiceControllerStatus.StopPending ||
+                service.Status == ServiceControllerStatus.Paused ||
                 service.Status == ServiceControllerStatus.PausePending);
         }
 
-        public virtual void Install(string serviceName)
+        public void Install(string serviceName)
         {
             Logger.Info("Installing service '{0}'", serviceName);
 
@@ -77,7 +76,7 @@ namespace NzbDrone.Common
             Logger.Info("Service Has installed successfully.");
         }
 
-        public virtual void UnInstall(string serviceName)
+        public void UnInstall(string serviceName)
         {
             Logger.Info("Uninstalling {0} service", serviceName);
 
@@ -93,17 +92,17 @@ namespace NzbDrone.Common
             Logger.Info("{0} successfully uninstalled", serviceName);
         }
 
-        public virtual void Run(ServiceBase service)
+        public void Run(ServiceBase service)
         {
             ServiceBase.Run(service);
         }
 
-        public virtual ServiceController GetService(string serviceName)
+        public ServiceController GetService(string serviceName)
         {
             return ServiceController.GetServices().FirstOrDefault(c => String.Equals(c.ServiceName, serviceName, StringComparison.InvariantCultureIgnoreCase));
         }
 
-        public virtual void Stop(string serviceName)
+        public void Stop(string serviceName)
         {
             Logger.Info("Stopping {0} Service...", serviceName);
             var service = GetService(serviceName);
@@ -136,7 +135,7 @@ namespace NzbDrone.Common
             }
         }
 
-        public virtual void Start(string serviceName)
+        public void Start(string serviceName)
         {
             Logger.Info("Starting {0} Service...", serviceName);
             var service = GetService(serviceName);

NzbDrone.Host/Router.cs

@@ -32,7 +32,7 @@ namespace NzbDrone.Host
 
         public void Route(ApplicationModes applicationModes)
         {
-            if (!_runtimeInfo.IsUserInteractive && !OsInfo.IsLinux)
+            if (!_runtimeInfo.IsUserInteractive && !OsInfo.IsLinux &&_serviceProvider.ServiceExist(ServiceProvider.NZBDRONE_SERVICE_NAME))
             {
                 applicationModes = ApplicationModes.Service;
             }