MD5SUM Instructions

[Al Franz]

Is there an official page for MD5SUM.  I have noticed several utilities on
the web and a program called MD5.EXE gives me a different result from what
the Redhat page says I should get?  I did find a MD5SUM.EXE command line
utility that gave the right result but it took several minutes to calculate
it.

Does it matter that I am on a Windows System as opposed to a Linux system
when using a utility to calculate the MD5SUM value?