This is a bug, and we cannot affect it one way or another. This problem occurs when a server sends an expired certificate as well as its own certificate to the browser. This problem does not occur with versions 4.5.1 and 5.0. Root Certificates Root certificates contain the public keys that correspond to the private keys we use to sign certificates. They are used to verify the signatures on the Server and Personal Certificates.
Root certs expire just like any other cert.
Our first CA root expired in July 1998. Our new root expires in 2020. In the Win32 world, Microsoft products that need cryptographic functionality can access it via the Crypto API or CAPI as it is known. So, on Win32 systems, Internet Explorer and IIS, etc., use the same crypto libraries and registry contents. Frontpage 98 Error when connecting to my secure site using Frontpage 98 Frontpage 98 was not shipped with the Thawte CA roots installed.