For most NAS systems, QuikFynd can be started from your NAS dashboard. But you can also start it via command line. But you need SSH access to your NAS for it.
Copying QuikFynd binary to your NAS using WinSCP
Downloading PuTTY and WinSCP Windows system for SSH and SCP access
For most NAS systems, QuikFynd can be installed via NAS dashboard. But there are cases when it is not possible. For example, if the NAS dashboard doesn't support any add-on applications. In this case, you can still copy QuikFynd to your NAS by using SCP (Secure Copy) and starting it by logging into your NAS via SSH (Secure Shell).