[kh99]

I think if you can run one of the programs from the command line (with no arguments) it prints the version at the top. But I just did that on our server and found that it was version 6.2.something and it didn't know what -auto-orient was, so I guess it was something added recently. So I'm guessing that's the problem you're having. But maybe what I can do instead is read the orientation and give it an explict rotate command, because I'm pretty sure that's all that's happening anyway.

Anyway, if you do have the ability to run from a command line, you can do something like convert -auto-orient img.jpg img2.jpg and see if it complains about the -auto-orient. I'm not sure if the 'img.jpg' file really has to exist, but if it does you can probably use 'touch' to create it because you don't care about the result, only about whether or not it recognizes the option.