open a file with its default programme

Question

In my application I want to open some files with the correct default programmes, like .doc file should be open with WORD and .psd files should be opened with Photoshop if it is

Answer 1

Browsers typically don't have access to the computer's filesystem for security reasons. If you know the exact path to a file you can point the browser at it using a file: URI, e.g.

file:///C:/path/to/file.ext

You may also be able to do this with a plugin, eg ActiveX, however I am unsure as to what security measures that would have.