Currently, it seems that the only versions of Measurement Studio are 32-bit. Since applications developed with 32-bit have certain limitations (particularly with memory usage), it would be great to be able to use NI analysis and filtering on larger files. Currently, this is a limitation that causes problems with processing some data files, and will only become a larger problem as the trend to store (and analyze) more and more information continues. Perhaps I'm missing something and there's already a 64 bit version somewhere, but I did contact support and they were unaware of anything.