ummmm...... no
OS2 was a sort of windows made by IBM in collaboration with micsoft.
these days its as good as dead
there are still loyal fans but the windows 9x and nt series have killed os2
if you don't know what os2 is then just choose non os2
and i belive you were refering to windows95 OSR2 (official service release two, i think thats what it stands for)