[quote="ryanagler"]I am having the exact same problem on Vista. I have "normal" windows explorer set to open all unknown files with dde to xemacs. It works great.
So, I customized the "left double-click" under "unknown file types". here are my settings:
I then double-click an unknown file in opus and boom, opus crashes every time.
Ive played with it a bit and found the crash is caused by the ddeapp name. if i do "ddeapp xemacs.exe" it wont crash, but it wont do dde either (a new instance of xemacs will open, with the clicked file, and a new file named dde!)
Yes, I have also tried the "open unregistered file type in text" preference, but it doesnt work either! If i double-click an unknown file in opus, Windows always says "Windows cannot open this file ..." and wants me to choose a program.
How can I get this to work?[/quote]
I'm not sure what happened, but after playing with it/rebooting a few times, it no longer crashes, but it still doesnt work correctly either.
To try something different, I decided to have Opus open unknwon files with PSPad instead of XEmacs. Now what happens is that with PSPad it appears dde is working, but PSPad just creates a new file called "dde", and not the file that was double-clicked. XEmacs also creates a new file called "dde", but doesnt seem to have dde working as it launches a new instance of XEmacs each time. here are the settings I tried:
"C:\Program Files\PSPad editor\PSPad.exe" /dde
Can anyone confirm that custom 'Unknown File Types' dde settings actually work in Vista?