To start, you need to know what extension it is so you can add it manually to
the list, because apparently the automatic method isnt working. Click on
Start, Click Run, type Control Folders. Click on the View tab. Apporox 11
lines down there is a check box that says 'Hide extensions of known file
types'. Make sure this is unmarked, then click apply, then OK.
Save the attachment to your computer and remember where you save it to. Now
go to the diretory that your saving it to, single click on it and you should
see the complete file name. Should be something like
NAMEOFFILE.XXX
You need to know what XXX is. Once you have XXX, click on start, run,
control folders again. Go to the file types tab. Click the New button. In the
new window type in your extension, then click OK. Find the extension within
the list, then in the bottom section, click the change button. A window will
appear mark the option 'Select the program from a list'. Click OK. Find the
program you want to open the file with, click it once, then below the box
there should be a check box that says 'Always use the select program to open
this kind of file'. Click the OK button. YOu should be able to open your
"attachment" now.
If you want, you can go back into Control Folders and mark that option to
hide extensions of know file types as it affects all files on your machine.
Some people dont like to see that.