There is an Adobe Reader program and Adobe Acrobat program, two separate things.. The Reader is the free basic program which opens/views PDF files.. The Adobe Acrobat program is a full-fledged suite which creates, edits, and views documents including PDF files and it's EXPENSIVE, a few hundred dollars.. Most importantly, if you only want Foxit Reader and Adobe Flash on the computer, you don't need EITHER of the two items above but you won't be able create PDF documents if you uninstall the full Acrobat program.. Flash and Foxit will work fine without the other tools.
The Adobe Reader 9.2 installer I mentioned earlier is only for the Reader version and if you want Foxit, then you probably don't need both.
And you can uninstall Adobe Air and Acrobat.com which were placed there by earlier versions of the Adobe Reader installations. They aren't necessary.
So which is it?