To add the digital signature in Office 2003:
1 Start Excel or Word.
2 Point to Tools, Macro, and click Security. Set Security Level to High. Click OK.
3 Exit Excel or Word.
4 Open the applet program. The Security warning dialog box appears.
5 On the security warning dialog box you will view the "AIS VBA Digital Signature" certificate. Click the Details button.
6 Click View Certificate.
7 Click Install Certificate
8 The import wizard appears (not shown here), click Next to show this screen to the right.
A Click Place all certificates in the following store, and Browse to Trusted Root Certification Authorities.
B Click Next.
C Click Finished.
D Click Okay to close all dialog boxes except the Security Warning box shown below.
9 Click the checkbox next to Always trust macros from this source. Click Enable Macros. The AIS VBA Digital Signature is now added to the trust list.
10 To verify, point to Tools, Macro, Security, Trusted Sources. The AIS VBA Digitial Signature appears on the Trusted Sources List.