Hello AstraNut,
This morning, I finally made the time to log onto the hosting web site and started reading carefully what was offered. In about 10 min, I found the solution right there, and tested the process.
Indeed, they had a Protect a Directory link in the Control Panel.
I feel very embarrassed for wasting so much of your time. Yes, I know almost nothing about writing codes but still... I should have done this long ago. Thank you very very much again for sharing your knowledge. I is appreciated more than can be expressed in words.
Sincerely,
DovBer