You digitally sign (digital signature: An electronic, encryption-based, secure stamp of authentication on a macro or document. This signature confirms that the macro or document originated from the signer and has not been altered.) a file or a macro project (macro project: A collection of components, including forms, code, and class modules, that make up a macro. Macro projects created in Microsoft Visual Basic for Applications can be included in add-ins and in most Microsoft Office programs.) by using a digital certificate (digital certificate: Attachment for a file, macro project, or e-mail message that vouches for authenticity, provides secure encryption, or supplies a verifiable signature. To digitally sign macro projects, you must install a digital certificate.).
- If you don't already have a digital certificate, you must obtain one.
You can obtain a digital certificate from Office Marketplace - Digital Signing, or from your internal security administrator or Information Technology (IT) professional. Or, you can create your own digital certificate.
To learn more about certification authorities that offer services for Microsoft products, see the list of Microsoft root certificate program members.
- The hyperlink (hyperlink: Colored and underlined text or a graphic that you click to go to a file, a location in a file, a Web page on the World Wide Web, or a Web page on an intranet. Hyperlinks can also go to newsgroups and to Gopher, Telnet, and FTP sites.) in this topic goes to the Web. You can switch back to Help at any time.
- Because a digital certificate you create yourself isn't issued by a formal certification authority, macro projects signed (macro project: A collection of components, including forms, code, and class modules, that make up a macro. Macro projects created in Microsoft Visual Basic for Applications can be included in add-ins and in most Microsoft Office programs.) by using such a certificate are referred to as self-signed projects. Depending on how Microsoft Office digital-signature features are being used in your organization, you might be prevented from using such a certificate, and other users might not be able to run self-signed macros for security reasons.
- Do one of the following:
Sign a file
- On the Tools menu, click Options, and click the Security tab.
- Click Digital signatures.
- Click Add.
- Select the certificate you want to add, and then click OK.
Sign a macro project
- Open the file that contains the macro project you want to sign.
- On the Tools menu, point to Macro, and then click Visual Basic Editor.
- In the Project Explorer, select the project you want to sign.
- On the Tools menu, click Digital Signature.
- Do one of the following:
- If you haven't previously selected a digital certificate or want to use another one, click Choose, select the certificate, and then click OK twice.
- To use the current certificate, click OK.
Cool things you can do with Office 2010
If you purchase, install, and activate a qualifying Microsoft Office 2007 product between March 5, 2010, and September 30, 2010, you could be eligible to download Office 2010 at no additional cost.