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Part III: Expanding Your VBA Horizons



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VBA For Dummies 5th Ed.pdf ( PDFDrive )

Part III: Expanding Your VBA Horizons 
14_046500 ch08.qxp 12/5/06 5:36 PM Page 202


Adding a Digital Signature 
to Your Creation
You might eventually want to send your class to someone else. In some cases,
this means sending the entire project to them. Whenever you send your pro-
ject to someone else, make sure that you sign it so that the recipient knows
that you actually created it.
Obtaining a digital signature
A digital signature isn’t anything special in its own right. You can create a 
digital signature quite easily and use it to sign your VBA projects. The magic
in a digital signature is in the trust it provides. Consequently, you need to
sign your projects with a digital signature that people can trust. In most
cases, this means obtaining a digital signature from a third-party Certificate
Authority (CA), such as VeriSign. You can find a list of CAs at 
http://
msdn.microsoft.com/library/?url=/library/en-us/dnsecure/
html/rootcertprog.asp
.
Creating a test digital signature
Not everyone will want to buy a digital signature from a third party. If you
create VBA applications exclusively for your own use, buying a digital signa-
ture is a waste of time and money. In addition, you might not want to use a
third-party digital signature for testing. To receive full benefit from a third-
party certificate, you must keep it secret. For these reasons and more, you’ll
probably want to create a test or personal certificate at some point. The fol-
lowing steps describe how to perform this task:
1. Choose Start

Programs

Microsoft Office

Microsoft Office Tools

Digital Certificate for VBA Projects.
You see the Create Digital Certificate dialog box.

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