The C-language header files for Cryptoki Version 2.01 are in the Headers directory. The Spec directory contains the final Cryptoki Version 2.01 specification in the following files and formats: v201-95.doc: MS-WORD 95 format v201c-95.doc: MS-WORD 95 format, with change bars relative to the original Version 2.0 spec from April 1997 v201.pdf: .pdf format v201doc.zip, v201cdoc.zip, and v201pdf.zip are ZIPped versions of the above files, respectively.