Does not allow arguments that start with the '@' character

```
static void Main(string param1, string param2)
{
Console.WriteLine($"Parameters Param1={param1}, Param2={param2}");
}
```

Fails when invoking the app from command line with a parameter that starts with the "@" character

```
C:\MyApp.exe --param1 Hello --param2 @World

Response file not found 'World'
Required argument missing for option: --param2
```