I believe I have the Drzewiecki design Moscow add-on, and I might have this one, (I’ll have to go check), but that could be the case.
Either that or I’m confusing things with X-Plane since I have all the MSFS sims installed since 2004 and XP-11 and 12 along with MSFS 2020.
I remember the Atari 8-bit cartridge for MSFS, and it’s just jaw-dropping how things have changed over the years. Even now, I go back and try flying FSX - which when I bought it was dripping-edge of the bleeding edge DUDE!, but now it looks like a wind-up doll. . .