SEN Enabler is a homebrew application for CFW enabled PS3 consoles that was developer and is maintained by developer Evilnat.
See Release Thread for additional details / Support and Download Mirrors.
https://www.psx-place.com/threads/sen-enabler-tutorial-latest-releases.147/
Then also for additional details you can also visit the SEN Enabler Sub forum here as well:
http://www.psx-place.com/forums/sen-enabler.114/
http://www.psx-place.com/forums/sen-enabler.114/