A simple file verification tool for Windows that lets you validate CRC32 and MD5 file checksums.

I'm still polishing the application. There is currently no stable version released to the public.

UltraSFV is a free file checker utility for Microsoft Windows systems. It lets you validate CRC32 and MD5 checksums on files that you have downloaded or otherwise transferred over unreliable or unsecure channels.

It is designed to be light weight and user friendly. Everything is done through a simple native Windows GUI or Windows Explorer integration. The application itself is based off of .NET so it runs natively on any Windows computer that has .NET installed (which is basically any version of Windows after 98).

This project was actually started in 2008. I had just begun using Network Attached Storage systems at home and was having terribly annoying LAN corruption issues because of a couple crappy NICs. So I needed a tool to verify the integrity of files after they had been transferred over the network. I tried several different file verification utilities and found them all wanting. So I decided to make my own.

I got the project to the point where all of the functionality that I needed was working perfectly and started using it regularly, but never reseased it. Of course I began the project with every intention of releasing it as a freeware utility for other people, but unfortunately I never had the time to finish polishing it to the point where it was ready for a full public release, and so it sat.

Well after 5 years of, let's call it "development", the UltraSFV project is back. I'm going to polish out the last few features that kept me from releasing it and then set it free.

Special thanks to Paul Jarvis for creating the twotiny icon set used in this application and releasing it under Artistic License/GPL.

(This project is released under the MIT license.)

Copyright (c) 2013 Steven Benner (http://stevenbenner.com/)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.