Hi Ariel,

This is not a .NET Framework feature, but it's actually something built into
the OS (registry). You can do this by creating a setup project in Visual
Studio for your application. If you install your app. with this setup
package, the file type mapping will be done. You should use the file type
editor in the setup project designer.

Look here for more info:
http://www.devnewz.com/devnewz-3-20031009CreatingSetupandDeploymentProjectsinVSNET.html
File types editor is used to associate a default command action, File
description , icon and extension for your custom files.


>Hi can somebody give me a link or a short explanation of how to do in c# to associate a filetype to open with my own app... i mean a file with the extensio .abc when doubleclick on it in tehe explorer i wish "automagically" open my app
>
>thanks in advance