Windows service work, remove old installer... not sure exactly what we're going to use.

windows/ZeroTierOne/ServiceInstaller.cpp

@@ -42,20 +42,21 @@
 //   NOTE: If the function fails to install the service, it prints the error 
 //   in the standard output stream for users to diagnose the problem.
 //
-void InstallService(PSTR pszServiceName, 
+std::string InstallService(PSTR pszServiceName, 
                     PSTR pszDisplayName, 
                     DWORD dwStartType,
                     PSTR pszDependencies, 
                     PSTR pszAccount, 
                     PSTR pszPassword)
 {
+	std::string ret;
     char szPath[MAX_PATH];
     SC_HANDLE schSCManager = NULL;
     SC_HANDLE schService = NULL;
 
     if (GetModuleFileName(NULL, szPath, ARRAYSIZE(szPath)) == 0)
     {
-        wprintf(L"GetModuleFileName failed w/err 0x%08lx\n", GetLastError());
+		ret = "GetModuleFileName failed, unable to get path to self";
         goto Cleanup;
     }
 
@@ -64,7 +65,7 @@ void InstallService(PSTR pszServiceName,
         SC_MANAGER_CREATE_SERVICE);
     if (schSCManager == NULL)
     {
-        wprintf(L"OpenSCManager failed w/err 0x%08lx\n", GetLastError());
+		ret = "OpenSCManager failed";
         goto Cleanup;
     }
 
@@ -86,12 +87,10 @@ void InstallService(PSTR pszServiceName,
         );
     if (schService == NULL)
     {
-        wprintf(L"CreateService failed w/err 0x%08lx\n", GetLastError());
+		ret = "CreateService failed";
         goto Cleanup;
     }
 
-    wprintf(L"%s is installed.\n", pszServiceName);
-
 Cleanup:
     // Centralized cleanup for all allocated resources.
     if (schSCManager)
@@ -104,6 +103,8 @@ Cleanup:
         CloseServiceHandle(schService);
         schService = NULL;
     }
+
+	return ret;
 }
 
 
@@ -119,8 +120,9 @@ Cleanup:
 //   NOTE: If the function fails to uninstall the service, it prints the 
 //   error in the standard output stream for users to diagnose the problem.
 //
-void UninstallService(PSTR pszServiceName)
+std::string UninstallService(PSTR pszServiceName)
 {
+	std::string ret;
     SC_HANDLE schSCManager = NULL;
     SC_HANDLE schService = NULL;
     SERVICE_STATUS ssSvcStatus = {};
@@ -129,7 +131,7 @@ void UninstallService(PSTR pszServiceName)
     schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT);
     if (schSCManager == NULL)
     {
-        wprintf(L"OpenSCManager failed w/err 0x%08lx\n", GetLastError());
+		ret = "OpenSCManager failed";
         goto Cleanup;
     }
 
@@ -138,45 +140,32 @@ void UninstallService(PSTR pszServiceName)
         SERVICE_QUERY_STATUS | DELETE);
     if (schService == NULL)
     {
-        wprintf(L"OpenService failed w/err 0x%08lx\n", GetLastError());
+		ret = "OpenService failed (is service installed?)";
         goto Cleanup;
     }
 
     // Try to stop the service
     if (ControlService(schService, SERVICE_CONTROL_STOP, &ssSvcStatus))
     {
-        wprintf(L"Stopping %s.", pszServiceName);
-        Sleep(1000);
+        Sleep(500);
 
         while (QueryServiceStatus(schService, &ssSvcStatus))
         {
             if (ssSvcStatus.dwCurrentState == SERVICE_STOP_PENDING)
             {
-                wprintf(L".");
-                Sleep(1000);
+                Sleep(500);
             }
             else break;
         }
-
-        if (ssSvcStatus.dwCurrentState == SERVICE_STOPPED)
-        {
-            wprintf(L"\n%s is stopped.\n", pszServiceName);
-        }
-        else
-        {
-            wprintf(L"\n%s failed to stop.\n", pszServiceName);
-        }
     }
 
     // Now remove the service by calling DeleteService.
     if (!DeleteService(schService))
     {
-        wprintf(L"DeleteService failed w/err 0x%08lx\n", GetLastError());
+		ret = "DeleteService failed (is service running?)";
         goto Cleanup;
     }
 
-    wprintf(L"%s is removed.\n", pszServiceName);
-
 Cleanup:
     // Centralized cleanup for all allocated resources.
     if (schSCManager)
@@ -189,4 +178,6 @@ Cleanup:
         CloseServiceHandle(schService);
         schService = NULL;
     }
-}
+
+	return ret;
+}