COM files, a.k.a. DOS commands, a.k.a. DOS .com programs.
00:00 Getting ready
00:36 start!
01:39 no clear names
01:57 executables or programs?
02:27 no specification
03:33 hard to identify
04:03 size constraints
04:33 running an empty COM
06:01 empty, but commercial
06:28 MBR and COM 'polyglots'
08:35 Budokan COM tricks
09:55 a small handmade COM
11:11 the EICAR file
16:53 conclusion