Encryption type for password protected Office 97-2003 files

This policy setting enables you to specify an encryption type for password-protected Office 97-2003 files.

If you enable this policy setting, you can specify the type of encryption that Office applications will use to encrypt password-protected files in the older Office 97-2003 file formats. The chosen encryption type must have a corresponding cryptographic service provider (CSP) installed on the computer that encrypts the file. See the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\ registry key for a list of CSPs installed on the local computer. Specify the encryption type to use by entering it in the provided text box in the following form:

,,.
For example, Microsoft Enhanced Cryptographic Provider v1.0,RC4,128

If you do not configure this policy setting, Excel 2007, PowerPoint 2007, and Word 2007 use Office 97/2000 Compatible encryption, a proprietary encryption method, to encrypt password-protected Office 97-2003 files.

Important - Recent testing of this policy setting determined that it did not function as expected.

Supported on: At least Windows Vista
Encryption type:

Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Office\12.0\Common\Security
Value NameDefaultEncryption12
Value TypeREG_SZ
Default Value

office12.admx

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