NAVTOR flight planning program
 

for years I have used the wonderfully simple NAVTOR flight planning program, which I believe is now discontinued. For ease and speed nothing beat it- but it had a copy protection system involving transferring a 'token' back onto a the master disc if youwanted to move it beween computers. [All DOS based- emember master discs?]

All fine for the last five changes of computer, until I had a total failure of my hard disc, and hence no way to regain the token.

Anyone know how I can get back in, or whether original vendors still support?