Acrobat Reader Installation wants me to delete Acrobat 9

I had to delete and re-intall Acrobat Reader. I also have Acrobat 9 Pro which I want to keep. I need both. Howver, the Acrobat reader has this cryptic message: "To proceed... it is required to unintall older versions of Adobe Acrobat (note it doesn't say older versions of Reader, which I have already unintalled). "  NOTE: I don't want to unintentionally delete Acrobat Pro 9. 

Can someone tell me if proceeding will also delete my Acrobat Pro 9, and if so, how do I get around this and load reader? I need to keep both.