Usage: (on the command line) md5checksum
Example:
c:\md5checksum autoexec.bat
results:
Filename: autoexec.bat
MD5 Checksum = D41D8CD98F00B204E9800998ECF8427E
Download
file: md5checksum.exe
source code:md5sample.cs
(sample shows usage in c#, does not exhaustively show the background into the md5 algorithm; but two minutes with Google should fix that for you.)
references:
Creating an Md5 hash string