CAPICOM Shell Extensions

Another handy shell extension for those who deal with digital signatures. The extension adds new columns to shell explorer and also allows to put digital signature related information into informational tooltips.

The following columns are added:

• Signature state (presence, validity), description, URL
• Signer certificate details (subject, issuer, email etc.)
• TimeStamper certificate details (signing time, subject, issuer, email etc.)

Some screenshots are shown below:

To add digital signature information info informational tip, use regedit to update the following items:

Key: HKEY_CLASSES_ROOT\dllfile, backup “InfoTip” value and append the following string:
“;{C0399172-9505-441F-835B-C78EF8253BE9}1;{C0399172-9505-441F-835B-C78EF8253BE9}3;{C0399172-9505-441F-835B-C78EF8253BE9}15”

This will add digital signature state, description and signing time to the tip. The same modification may be applied to HKEY_CLASSES_ROOT\exefile and other keys.

Download the extension (566K, MS CAPICOM redistributable included)

Keywords: CAPICOM, Shell Extensions, Digital Signatures, Authenticode