#5844
As we all know, the integrity of a file can be quickly determined by checking its hash value (i.e.: find out whether two files have identical content or not). There are many file hash checking tools out there, even Windows PowerShell can compute hashes of files directly, but most of them are designed for a single file.

#5513
In the process of publishing various types of files on the Internet, whether the document has been tampered with is the main concern of both the publisher and the receiver. That's why message digest algorithms like MD5, CRC32 and SHA-1 are used to calculate and check the unique hash value for files, so as to ensure that the files in circulation remain untouched. This is where utilities like HashMyFiles come in.

#310
If you don't understand what is the hash value of a file, then, i don't think you have to study this application, because maybe you do not need to use it or even know it at all.