CD xnview doesn't run under Vista but XP

[chrizio]

[autorun]
open = .\_Tools_\XnView\xnview.exe .\Photos01\ -ini .\_Tools_\XnView\xnview.ini
icon = .\_Tools_\XnView\xnview.exe,0
label = Photos 1

shell\browsing = &Browse all by XnView
shell\browsing\command = .\_Tools_\XnView\xnview.exe . -ini .\_Tools_\XnView\xnview.ini

shell\slides00= Slide show '&All Photos'
shell\slides00\command = .\_Tools_\XnView\xnview.exe -slide .\_Tools_\slideshow\all.sld -ini .\_Tools_\XnView\xnview.ini


This autorun.inf did work very well on windows XP.
But not on Vista any more.

I'm testing it using a mounted iso image.
Invoking a position from drive context menu like that one corresponding to "slides00" generates an error message
F:
Application couldn't be found.
Same results if selecting "Run or install the application XnView" from the vista autorun dialog.

What's wrong ?
I don't have any probs with this autorun.inf while running on XP.