So can someone explain to me why this non-codesigned install program
gets accepted just fine by Chrome, and Windows 10? (other than showing
that it's an unknown publisher, but it certainly doesn't look like an
objection). The installed executables are also un-signed.

https://www.7-zip.org/

I downloaded the 64-bit Windows setup.
https://www.7-zip.org/a/7z1900-x64.exe


Thanks.

Jeff Slarve
www.jssoftware.com

Ones and Zeros are my Heroes