Possible Duplicate:
“Open With” dialog ignores my selection
I am using Windows 7. I am using Processing 2.06a and want to start .PDE files with the processing.exe file. Processing does not have install files (like Eclipse, or any other portable software) so you can place it anywhere. I placed it in the Program Files folder however.
If I rightclick on a .PDE file,
click "Open with...",
click "Browse...",
look for the "processing.exe" file,
click "OK" (in the browse dialog)
and click "OK" (in the open with dialog)
it does not open Processing, but it opens Adobe Reader (presumably since it is the first item in the list).