Links 2003 install on Windows Version 20H2

I installed this old version of Links 2003 Golf but had a problem and can't remember how I solved it. Perhaps someone can refresh my memory (in case I ever have to install it again).

After installing Links 2003 it would not start and i got an error message telling me that I needed to enable something called (as I remember) Real Play. I did a search online and found directions that sent me to a list of Win10 items that each had a rectangular checkbox. I checked the box next to Real Play, restarted Win10 and was up and running. I (foolishly) did not bookmark or make a note of where I had been and now can't remember - was where I had been a list of "processes" or something else?

I'm sure a Win10 wizard here knows where I was and what I did to get Links 2003 running - can you refresh my memory? Internet searches are only returning stuff about Real Player ( not what I'm looking for).

TIA for any help.

Thanks - do I need to delete this thread? If so, how do I delete it? Thanks.