subclassing Word's Signature DialogBox( listbox with Certificates)

Dear all,
While attempting to tweak windows word 2003.
I am struggling to find the way to select programmatically with a filter on Signer Name, certificate.issuer and certificate.expiration.date the correct certificate which must be one of the certificates shown from "My store" and exposed in a Word DialogBox within a listbox.

I guess that subclassing techniques should be able to find the solution.

In word VBA the following code makes the dialog box appear

VB Code:

Dim sig 'as signature
set sig= activedocument.signatures.add

Can anyone help me to achieve the proper code snippet to do this ?
Looking forward to read your inputs I remain
Best regards :afrog:

Word VBA problem moved to Office Development.

Can you provide a screen shot of the dialog box in question?

Do you already have a Digital Signature? Are you wanting to add a signature or verify a signature?

I take it that this is the signature dialog box you want to get info from? If it is then I take it that you want to limit the signaturesets available to the signer? Why?