We\'re developing a site that will only run on the intranet, and computers with access to this intranet will have this executable installed. We can\'t have any \"Would you
Using a "file:///c:/Program Files/myprogs/myprog.exe" URL in the link used to work for IE. But, I have not tried this in a long time.
I would recommend the MIME type method above or adding a special URI prefix "chaos://myparams" that is handled by that executable.