Windows cannot find AcroTray.exe

Hi,

I'm using adobe acrobat pro 9 and started getting an error message everytime I attempt to create a pdf file using ms office whether it be in word, excel, or even in ms project

The error message is:

Windows cannot find 'C:\Program Files (x86)\Adobe\Adobe Acrobat10.0\Acrobat\AcroTray.exe'

Make sure you  typed the name correctly, and try again.

This just started to happen last week after using acrobat pro for the last two years with no problems.

I am using windows 7 home edition.

Any suggestions on how to fix this would be greatly appreciated as I've had no success

Garry