How to Check and Verify Integrity MD5 Checksum on Windows 7

In this i will show the quick steps how to verify MD5 using MD5sums on Windows 7. This steps may working on other Windows operating system such as Windows 2000, Windows XP, Windows 2003 server and Windows 2008 server. MD5sums calculates the MD5 message digest for one or more files. MD5 is a message digest algorithm that takes a message of arbitrary length and produces a 128-bits digital signature of the message.

1. Assumed that you have downloaded the FreeBSD-9.0 iso file and CHECKSUM verifier file together :
ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/9.0/FreeBSD-9.0-RELEASE-i386-dvd1.iso
ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/9.0/CHECKSUM.MD5

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2. Download and Save the md5sums.exe to C:\ as md5sum.exe :
Download: md5sums-1.2.zip [28 K]

3. Open command prompt and enter the following command :

C:\>md5sums target_file

Example :

C:\>md5sums Z:\Download\FreeBSD-9.0-RELEASE-i386-dvd1.iso

MD5sums 1.2 freeware for Win9x/ME/NT/2000/XP+
Copyright (C) 2001-2005 Jem Berkes - http://www.pc-tools.net/
Type md5sums -h for help

[Path] / filename                              MD5 sum
-------------------------------------------------------------------------------
[Z:\Download\]
FreeBSD-9.0-RELEASE-i386-dvd1.iso         100% fee32ba2041285b971daf7ea429e36e4

4. Compare the MD5 with the following CHECKSUM.MD5 file below :

MD5 (FreeBSD-9.0-RELEASE-i386-bootonly.iso) = 70b4b0dd42c309da79ce63ba2789cfe3
MD5 (FreeBSD-9.0-RELEASE-i386-disc1.iso) = 5bf615f286ee6eeb3ecce45bd8d1622c
MD5 (FreeBSD-9.0-RELEASE-i386-dvd1.iso) = fee32ba2041285b971daf7ea429e36e4
MD5 (FreeBSD-9.0-RELEASE-i386-memstick.img) = 79ddd8f3422e209ae9bd11fee4e399eb

5. If the MD5 key is the same above, the downloaded iso should be ok.

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