Add commands to get a hash string of a file to context menu of Windows Explorer.
The hash string is used as checksum. It is saved to a clip board.

Hash Algorithm: MD5, SHA1 and SHA256

Open hashfile-contextmenu-add.reg file.
Or hashfile-contextmenu-add-MD5.reg file to add a command to get MD5 only. hashfile-contextmenu-add-SHA1.reg and hashfile-contextmenu-add-SHA256.reg also.

Open hashfile-contextmenu-remove.reg file.