.COM - File Extension for DOS Command Files

Q

What is COM? COM, short name for Command, is used as the file extension for DOS Command files. .COM files are binary files that are used the old DOS (Disk Operating System) to store executable programs as DOS commands. See the sample .COM file included below.

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A

File Extension: .COM

MIME Type: application/octet-stream

File Content: DOS Command File

.COM files are DOS Command File files saved as binary files. Here are the first 128 bytes of a sample .COM file, LOADFIX.COM, dumped in HEX values:

bc 44 03 b8 6b 05 05 0f 00 b1 04 d3 e8 8b d8 8c .D..k...........
c1 03 c1 2d 6c 0f 73 04 f7 d8 03 d8 b4 4a cd 21 ....l.s......J..
e8 3a 00 73 04 b0 01 eb 17 80 3e 2c 04 01 74 1e ...s..........t.
b4 4b ba c8 03 bb 36 02 cd 21 72 08 b4 4d cd 21 .K....6...r..M..
b4 4c cd 21 ba 15 05 b0 01 e8 0c 00 eb f2 ba 2d .L..............
04 e8 04 00 32 c0 eb e8 b4 09 cd 21 c3 1e 06 be ....2...........
81 00 e8 78 00 80 3c 0d 74 61 80 3c 2f 75 0c 80 ...x....ta...u..
7c 01 3f 75 06 fe 06 2c 04 eb 4c 8b d6 be 44 03 ...u......L...D.

.COM DOS Command File file sample: Click sample.com to download.

2012-08-18, 3146👍, 0💬