LoadLibrary fails

Question

I am tying to create WebApp (using Asp.Net Core 2.2) for existing desktop app which is written in C++. From my webapp I am trying to invoke the process. Inside the c++ exe it is trying to load some DLL which is failing in my case. Same thing is working fine when i directly invoke the desktop app from cmd.   Please suggest how to rectify this problem.   This is my webapp code where i am invoking the exe - ProcessStartInfo sprbProcessInfo =  new  ProcessStartInfo();   sprbProcessInfo.FileName = @ "C:\Program Files\SmartPlant\Interop Publisher\SPRB.exe" ;   sprbProcessInfo.Arguments =  "\""  + strSrcFileFullPath +  "\""  +  " -b "  +  "\""  + strDestFileFullPath +  "\"" ;   sprbProcessInfo.RedirectStandardOutput =  true ;   sprbProcessInfo.UseShellExecute =  false ;   Process oTranslateProcess =  new  Process();   oTranslateProcess.StartInfo = sprbProcessInfo;   oTranslateProcess.Start();   oTranslateProcess.WaitForExit();   oTranslateProcess.Close();   This is what I am trying to do in my exe -   LoadLibrary (csSolidsFile); ===> this call is failing

Tejas Trivedi · Answer

Hi Surya,   Invoking exe from Web application running under IIS need to pass through Impersonalization. The best approach would be here to use TaskShedular to invoke exe from web application.   You can use Microsift.Win32.TaskScheduler class. Below is the sample code.  using  Microsoft.Win32.TaskScheduler;                      using  (TaskService taskService =  new  TaskService())               {                   var taskDefinition = taskService.NewTask();                   taskDefinition.RegistrationInfo.Author = WindowsIdentity.GetCurrent().Name;                   taskDefinition.RegistrationInfo.Description =  "Runs exe file" ;                         var action =  new  ExecAction(path, arguments);                   taskDefinition.Actions.Add(action);                      taskService.RootFolder.RegisterTaskDefinition( "NameOfTask" , taskDefinition);                       //get task:                    var task = taskService.RootFolder.GetTasks().Where(a => a.Name ==  "NameOfTask" ).FirstOrDefault();                       try                    {                       task.Run();                   }                    catch  (Exception ex)                   {                       log.Error( "Error starting task in TaskScheduler with message: "  + ex.Message);                   }                     }    Hope this will help you out.