My experience is that you need an external tool to delete certificates from IE.
I forgot the location, but you might find a clue to its whereabouts here:
http://www.drh-consultancy.demon.co.uk/pkcs12faq.html
and maybe this is the tool you need:
http://www.microsoft.com/security/certinst.exe
On Thu, Dec 17, 1998, Simon Kenyon wrote:
i installed a self-signed certificate in my web site and the day before it expired
i installed a new one. this seemed to screw up browsers that thought that the old
one was valid. so i deleted the certificate out of netscape but for the life of me
i
i installed a self-signed certificate in my web site and the day before it expired
i installed a new one. this seemed to screw up browsers that thought that the old
one was valid. so i deleted the certificate out of netscape but for the life of me
i cannot work out how to delet it from ie, anyone