The code in basMD5.bas contains an implementation of the MD5 algorithm in VB6/VBA (zipped 6 kB). (VBA users should delete the first line with Attribute VB_Name in it.) This code is relatively slow. VB is not the best language to implement this algorithm - we have to use multiplication and divide operations to do things that can be done with a single machine instruction in other languages. But it works. First published 16 September 2005.