When SDK is not installed, `dotnet` command is missing. So we need to 1. Try and run engine directly. 2. If fails, upon package download change mode of the engine to executable 3. Run it via `./file` on `*nix` and using supplied `exe` file on Windows.
When SDK is not installed,
dotnetcommand is missing. So we need to./fileon*nixand using suppliedexefile on Windows.