1)   Fsum Frontend 1.5.5.1 This is a Windows frontend for the fsum command line utility by Slavasoft. 2)   FastSum 1.9 An extremely fast utility for your files integrity control. The high accuracy attains through the usage of a cryptographic algorithm, as a matter of fact FastSum is a Windows MD5 Checker. All you have to know is – how to run FastSum. 3)   FastSum Standard Edition 1.6 Take control of your data with FastSum. Fingerprint your important files now and check the integrity after a network transfer or a CDDVD burning etc. simply by taking the fingerprints again and comparing them with the previously made ones.