No, it won't be opened by the selected program. Not always, anyway. ;-)
Seems I'm having the same problem as JPComben and Codify.
I copied a simple little '.exe' onto my laptop (in Program Files) to produce '.lob' files (which are basically html pages that be turned into web pages), and it works just fine. I can create '.lobs' with no problem
However, when I want to open a '.lob' I've created (using 'Open with'), although I can select the program, it won't appear in the box.
I tried the 'compatibility' troubleshooter and was told the program is not compatible. But like I said, when I access it directly, it works just fine.
It's not a big issue - it's just annoying to have to open the '.exe' every time I want to work on a '.lob'.
Is there any way of 'forcing' Windows to recognise the existence of a program?
Cheers,
David