Overview hkSFV is the simply the easiest, most intuitive and automatic way to create or check .SFV and .MD5 files. And, of course, it's completely free. What is an .SFV? -- An .SFV file is a tiny list of files and CRCs, which allow you to check to see if the files you have downloaded are exactly what you are expecting. The CRC algorithm used in .SFV files allows you to see if the file you have has been changed, even a single byte, since the .SFV file was created. What is an .MD5? -- In a sense, .MD5 did not exist until now, as md5sum is a popular Unix format similar to .SFV and Unix does not use file extensions the way Windows based systems do. .MD5 uses the md5 algorithm to compute its checksums, rather than the crc32 method used by .SFV. The md5 algorithm is almost as fast as crc32, but it is much more accurate at detecting changes in files. If you need to ensure that your data or data you download is error free, this program is for you. If you've got an .SFV or .MD5 file, this is the program for you. If you'd like to create an .SFV or .MD5 file, this is the program for you.

Features Easy installation and automatic uninstallation. (leaves no trace in the registry, even goes one step further than most programs and restores previous file associations when you remove it) One-click creation and checking of .SFV's and .MD5's Flawless & smooth upgrading to new versions (simply install the new version) Automatic association with .SFV files, and an option to fix file association when other programs steal it Handles .SFV and .MD5 files from any other program invisibly (including files created on *nix) Database / cache of previously checked files Batch .SFV and .MD5 checking! - queue up and check many .SFV's and .MD5's in one pass, specify a directory and check all the .SFV's and .MD5's in that directory (including subdirectories, if you want) Automatically find renamed files while checking .SFV or .MD5 files Enqueue .SFV's or .MD5's during file verification Recursive directory support during creation and verification Supports creation of .bad and .missing files, or deleting failed files Drag and drop .SFV or .MD5 file or directory to create/check .SFV or .MD5 Explorer Info Tooltip Shell extension allows you to select files in explorer to check, or to create an .SFV or .MD5 for (see image) Drag & Drop support File reformat options (case changes - lowercase or .SFV / .MD5 style) Supports always-on-top window, or reusing one window (only one instance running at a time) Verify files in the background by placing hkSFV in the system tray Pause / Resume process to save your system resources and continue where you left off Standard and smaller view options by hiding comments pane Counts of missing / bad / good files while checking .SFV or .MD5 Auto-close when finished Option to ignore ceratin file-types when creating .SFV or .MD5 files (like .nfo, .diz, or .m3u files) Customizable comments template (add your comments or txt/ascii/ansi art to the sfv files) Statistics Multilingual support Windows XP-style 32-bit icons ... and more ...