VERSION            81 contrib/gregbook/rpng-win.c #define VERSION   "2.01 of 16 March 2008"
VERSION            85 contrib/gregbook/rpng-x.c #define VERSION   "2.02 of 15 June 2014"
VERSION            92 contrib/gregbook/rpng2-win.c #define VERSION   "2.02 of 16 March 2008"
VERSION           102 contrib/gregbook/rpng2-x.c #define VERSION   "2.04 of 15 June 2014"
VERSION            91 contrib/gregbook/wpng.c #define VERSION   "2.00 of 2 June 2007"
VERSION            18 contrib/visupng/VisualPng.c #define VERSION   "1.0 of 2000 June 07"