example.go

// https://docs.microsoft.com/en-us/windows/win32/setupapi/run-and-runonce-registry-keys
root := `SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run`
app := "C:\\path\to\\binary.exe"
// escape the quotes around app in registry.SetString() below
err := registry.SetString(root, "whateverNameYouWant", fmt.Sprintf("\"%s\" --arg1 thing --arg2 --arg3", app))
	if err != nil {
		return err
	}
}