Used and enjoyed many platforms including DOS, C64, OS/2, Mac, Linux, Solaris, Windows, and NT. Have contributed to several OSS projects including Mozilla, Putty and Pidgin, and have written a few OSS projects of my own such as sdir, antinat, wincvt, serenity audio player. Currently working for Microsoft in Azure, and previously contributed to XP through Win10, on NTFS, ReFS, WOF (compression), and many related storage technologies.