Set File Associations
There are 2 ways that I use to set file associations. The first is when ther are no associations for a file type. That means the file name does not say that it is a certain file type. This usually is set when you install a program. Typically, a Word document uses a ,doc or .docx extension and if you point to a file in Windows Explorer or My Computer, it knows that the file is associated with Word and will start the program and open the file.
If there is no association: 1. Click on the file anyway and you will get the following dialog box

Change what you want to do to "Select a Program from a list of installed Programs"

Then Browse to the program. You may have look for it and usually it will be located under Drive C and then Program Files (C:\Program Files). Then find the program or publisher and drill down to find the program's exe file. Be sure the "Always Use the selected program" is checked to create the association. If that is not checked (and sometimes I don't want it to be) it will not create an association for any future tries.

If there is already an association and you want to change it (i.e. from Adobe Acrobat Professional to Adobe Acrobat Reader), then go to the Control Panel, Choose All Control Panel Items

Then choose Default Programs and Set Associations. Find the file extension and click Change Program


That should do it.
