Hello. I need calibration software for the Tek 1765 waveform.

I removed the Dallas DS1225 for to backup the calibration data but, when I tried to read the memory it had erased.
I'm searching for the calibration software, in this link says you can download but the link is not visible.
https://www.tek.com/en/support/faqs/where-can-i-get-1740a-1750a-or-1760-calibration-software

Best regards