What is this Hairston Acrobat Download which you are trying to use? If you are looking for the trial of Acrobat X Professional you can locate it at https://www.adobe.com/cfusion/tdrc/index.cfm?product=acrobat_pro&loc=en. Also as part of the install process your copy of Adobe Reader will be removed.
What I understand is you have downloaded teh acrobat X pro for windows , but when double-clicking in the file to install then this error comes up..
This seems to be teh file association problem , may we know which file format were downloaded and on which file are you double-clicking to install.
That sounds like some incompatible plug-in, possibly from an eBook reader/ software... Uninstall that and try again.