Adobe is a company, not a product. Without knowing what product you are actualyl referring to and the exact pjhrasing of the error message, nobody can help you specificalyl. Could be Adobe AIR, though, so download and install it...
Moving this discussion to the Adobe Reader forum.
I look in the program lsist, and see Adobe Reader 11.3.
There is no such thing as Adobe Reader 11.3; do you mean Adobe Flash Player?
I've better defined the situation. Adobe Flash Player only works in the Desktop, IE (MSN). Sometimes it works outside the desktop (other apps), and sometimes it doesn't work with some apps. Is there anyway to get it to work with everything?
Moving this discussion to the Installing Flash Player forum.