AW21  I bought iVPN Yesterday for a Mac mini running Tiger. Since I couldn't try it before buying, I ran into a crash when entering the serial number. I mailed the author and got an updated version that registered fine (but I could not get it to work - but this might be my fault).

Today I tried it on a Leopard system and it installed fine (but still doesn't work for me).

After a restart of my Mac and iVPN I suddenly got an alert with the text "Don't try to trick me". After that I had to enter the serial information again, which now continuously fails. So it looks like he can disable the software remotely.

I'll take legal steps tomorrow.  
(Version 2.6)

AW21  Yes, DxO is great - as long as it starts up. For me (and others see http://www.dslr-forum.de/showthread.php?p=1723660), it crashes on launch randomly (always in "stub_binding_helper_interface + 18"). Tech support is not able to help. For me it is the most expensive piece of non-functional software. I cannot recommend this software since you cannot rely on it!  
(Version 4.1)