I recently installed MDAC 2.8 on my development machine, and changed my project to reference MDAC 2.8 and recompiled an exe

My users would have installed the program with the 2.7 MDAC_TYP.exe, now I would like to send them this new exe, but since it was compiled with a 2.8 reference, will they need to install 2.8 for it to run, or will 2.7 do for now..?

If i'm not making sense, please say so!