The UCRT is just the newer, Windows-component version of the MSVCRT, the one they’re worried about. It’s even available for XP.

> will intentionally fail to print to remote print servers

Why would a more secure local print driver refuse to talk to _remote_ print servers? What is so untrustable about what comes over the wire, and if it is, how can they trust the print server is or is not one is claims to be and can be talked to?