I have a DOS and a Windows version but they seem to be different than the one used in the WR.

I'm not too familiar with this game and all the different versions, but it looks like the DOS floppy version. The "Radio Shock" store in the space mall is the giveaway, because Sierra changed it to "Hz. So Good" on the CD release.

Although, according to https://wiki.scummvm.org/index.php/Sierra_Game_Versions#SCI1_.28early.29 there are 2 different DOS floppy versions (game versions 1.052 and 1.1), so I'm not sure which of those two it is.