To find default application for opening a particular file.

[Mushq]

Can anyone please tell, how does windows operating system find a particular file's default opening program, for example Notepad is a default application used for opening files having extension txt. Does it read registry or something else?


Best Regards,
Mushq

[dglienna]

Yes. Search for OpenWith

It's a folder that has all the associated filetype keys. You can right click on any filename and adjust the settings.

[HanneSThEGreaT]

This will also be very very useful mushq :
http://msdn2.microsoft.com/en-US/library/bb776870.aspx