Csharp, Dotnet, Aspnet, Mutex, Dotnet Core.
-OutFile C:\file1.pdf} Start-Job {Invoke-WebRequest -Uri https://localhost:1000/api/download/2 -OutFile C:\file2.pdf} Start-Job {Invoke-WebRequest -Uri https://localhost:2000/api/download/3 -OutFile C:\file3.pdf} Start-Job {Invoke-WebRequest -Uri https://localhost:2000/api/download/4 -OutFile