eForms supports digital signature technology for signing forms and verifying signatures. These features rely on signing services and eForms signing plug-ins.
I-Sign is the eForms built-in signing service that lets you create and verify digital signatures based on a user ID and password. With I-Sign, your signing identity is based on the user name and password you use to log in to Workplace.
The CapiCom plug-in allows you to sign forms and verify signatures using the CryptoAPI for Microsoft CSP cryptographic standard.
If you want to sign a form using the Microsoft CSP signing service, you must download CapiCom dll version 2.1x or later. To get this file, go to www.microsoft.com, search for "capicom.dll", and download the file. Then run the file by following the prompts.