There are tools out there (like UMSKT) that can activate MS software from that era fully offline too. They cracked the cryptography used by the activation syste

There are tools out there (like UMSKT) that can activate MS software from that era fully offline too. They cracked the cryptography used by the activation system and reimplemented the tool used for phone activation, so you can “activate by phone” using UMSKT instead of calling MS.