I have a dual boot machine, is it possible to mount the same container files using versions of BestCrypt for Windows NT and Linux?
Yes, it is possible, but please remember about the limitation for Linux – the operating system does not support files larger than 2 GB (although in Windows 2000/XP/Vista it is possible to create much larger files on NTFS partitions). It means that container files should be not larger than 2 GB, if you want to use them both in Linux and Windows.