First of all, let me express my condolences on being stuck with Windows'98.
No, you cannot simply install ATM Light 4.1
on top of ATM Deluxe 4.0. You would need to uninstall ATM Deluxe 4.0 and then install ATM Lite 4.1, losing all the font management services in the process.
- Dov
- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)