JPG File Associations

Hi,
Does anyone know the assoc command to change .jpg file associations.
Just installed Fireworks on the IT suite and its now the default program. Would like a command to change it back to Windows Picture and Fax Viewer.
Thanks

right click on a jpeg and select "open with"

then choose windows picture and fax viewer, and tick the box that says "Always use this application"

This should help:
What if I *want* Windows Picture and Fax Viewer? - Ask Leo!

Code:

---

ASSOC .jpg=jpegfile
FTYPE jpegfile=rundll32.exe C:\WINDOWS\System32\shimgvw.dll,ImageView_Fullscreen %1

---

Thanks for the replies will give the ftype one a go in the morning.

I've tried the always open with but only seems to work for the current user logged on.