The version is 1.0.1.55 Revision 4, winMd5Sum, freeware Windows MD5 checksumming utility. SolidBlue Win MD5 Sum allows you to browse for files, drag and drop files on to box, send and pass files, and then get their MD5 sum. Meant to be 'faster to use' than other MD5 summers. You can even copy and paste the published md5 sum into the compare box...