同样是NirSoft出品的一款用于效验文件MD5、SHA1值的小软件！可以集成到右键菜单中，可以一次效验一个文件夹下所有文件的MD5/SHA1值！

HashMyFiles is small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system. You can easily copy the MD5/SHA1 hashes list into the clipboard, or save them into text/html/xml file.
HashMyFiles can also be launched from the context menu of Windows Explorer, and display the MD5/SHA1 hashes of the selected file or folder