XML::Validate::MSXML(3pm) on Linux
The text 1f2b4d5458eb, as Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
Interface to MSXML validator
The text 1f2b4d5458eb, as Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
Interface to MSXML validator