Windows context menu, Hash calculation shortcut

Calculating.Hash.Checksums - Remove.reg

Windows Registry Editor Version 5.00

[-HKEY_CLASSES_ROOT\*\shell\Calculating.Hash.Checksums]

CAlculating.Hash.Checksums.reg

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\*\shell\Calculating.Hash.Checksums]
@="Calculate hash checksums"
"Extended"=""
"Icon"="imageres.dll,262"

[HKEY_CLASSES_ROOT\*\shell\Calculating.Hash.Checksums\Command]
@="cmd /s /c pushd &(call certUtil -hashfile \"%1\" MD2 & certUtil -hashfile \"%1\" MD4 & certUtil -hashfile \"%1\" MD5 & certUtil -hashfile \"%1\" SHA1 & certUtil -hashfile \"%1\" SHA256 & certUtil -hashfile \"%1\" SHA384 & certUtil -hashfile \"%1\" SHA512) > \"%1\"-Hash.txt"

The registry script (CAlculating.Hash.Checksums.reg) creates a shortcut entry in extended Windows context menu (Shift+Right-Click) for quickly calculating and saving hash checksums (MD2, MD4, MD5, SHA-1, SHA-256, SHA-384, SHA-512) in a text file. The checksums are calculated through the Windows built-in Certutil program, without the need for any third-party applications.

• To make the hash calculation option appear for normal Windows context menu (Right-Click) just remove the "Extended"="" line from code.
• A more customised icon can be used by providing a path to it, for example, "Icon"="\"D:\\Icons\\icons8-Hash-26.ico\"". The extra backslashes (\) are to make sure the quotation marks and backslashes are included in the created registry entry.
• I recommend the Windows 8 dark-red Hash icon.
• Calculating.Hash.Checksums - Remove.reg code is to undo the changes and remove the hash calculation context menu entry.
• For a cascading context menu with individual menu entries for calculating and saving individual checksum types, check out CAlculating.Hash.Checksums.Cascading.reg.