MD5sums

MD5sums is a simple command line tool designed to calculate the MD5 message digest for one or more files. (includes a percent done display for large files). By comparing the MD5 digest of a file to a value supplied by the original sender, you can make sure that files you download are free from damage and tampering.
MD5 values are frequently supplied along with downloadable files. There is no GUI, but you can use Explorer to drag files over md5sums.exe to obtain their md5 hashes.
Here are some key features of "MD5sums":
ï¿­ MD5sums has user-friendly output, including a percent done indicator when processing large files. With its various command line switches you can customize MD5sums for use in scripts.
ï¿­ The UNIX compatibility switch (-u) makes the output look like that from the Linux/BSD/UNIX md5 or md5sum commands.
ï¿­ Besides the normal command line usage (see examples above), MD5sums
ï¿­ can also be easily added to the windows shell. Use Windows Explorer to access your user profile directory (one level up from the "Start Menu" directory). Locate the "SendTo" folder and create a shortcut inside it to "md5sums -p" (pause before returning).
ï¿­ If you have trouble locating your user profile directory, try this at the command prompt: echo %userprofile% After adding MD5sums to the SendTo folder, you can select one or more files on the desktop (or in any other folder), and right-click to "Send To" md5sums. Each selected file will be processed.