What is the name of the Plugin and the OS you are on?
Screen shot of error will help...
Unfortunately I'm unable to take a screenshot. The file was made by a client that brought it in on USB and I didn't copy the file. Long story basically.
The error just said that I needed to update my plugin(s) to be able to open this file. It didnt give a name of the plugin or a specific error code.
Either the client was using a beta of CS6 or the file was corrupt.
BTW, did you actually try to open it from the USB stick? Not a good idea and that could have caused a problem all by itself.
The original file was made in indesign 2.0. Probably a corrupt file as you mention.
I tested it out with other files that were made in 2.0 and they opened without problems after all. So I hope the client can still recover the file on her own computer.
Thanks for the input though!