Hi HECnet, I am wondering if people could help me out please and do a search on your VAX systems (VMS or Unix) and see if you get a hit for any of the following paths/names. These files will form MLkit which is an early implementation of the ML programming language written in Pascal. It is a tricky string to search for these days online since it collides with MachineLearning. Paths to search for: /usr/bin/ml /usr/lib/ml/mlsys /usr/lib/ml/lib.ml mlkit VMS might have similar names (mlsys, ml, mlkit) but in a single level directory. thanks, nigel.