I never use them, and haven't lookked at them for about 4 years tbh. Professional stuff I use at work took over... Plus I've beena Mac man for just over a year.

Hit Google see what you can rustle up. Also, if you know a programming language, you can normally work around poor encryption. I don't program so can't help ya there.

Sorry I couldn't be much help m8. Brain dies after 18 hours analysing CCTV, and tracing an illegal image back through 100s of PCs. All in a days work...

It should be a value in the files listings. There may not be any specific listings for the file. Only really poor encryption uses ait.