How to set file extension?

Brett Romero · Feb 14, 2006

I'm trying to associate a file extension to a program I've created. I
have
browsed for the program in Windows Explorer | Tools | Options and set
it there. However, Windows always keeps Notepad as the program that
should open this file.

I'd did the exact same steps a few days ago and the program was fine.
I'd double click the file with the specific extension and it would open
my program. Now I can't set it at all. Does any one know how to get
this working?

Thanks,
Brett

Ignacio Machin \( .NET/ C# MVP \) · Feb 14, 2006

Hi,

You need to edit the registry, this is a link from unmanaged code, you have
to do the same

http://support.microsoft.com/?id=185453

How to set file extension?

Brett Romero

Ignacio Machin \( .NET/ C# MVP \)