It's not recommended nor supported for Windows users (see you post in the Windows forum. Not sure what OS you use).
You "may" experience problems such as Reader opening when you try and use Acrobat or the other way around. Also, uninstalling one may damage the other.
But, there are many that DO run both without issue so, your results may vary.
Thanks for your help. I'm running Windows XP pro. I'm confused about the forum layout. Have I posted in the wrong place?
You have posted in the correct place. (And everybody is confused about the new forum layout.)
If you have difficulties to run Acrobat and Adobe Reader on the same computer, uninstall Adobe Reader, then install it under Windows Virtual PC.