Publlished Certificates

I am trying to pull a list of the either the valid dates of a certificate or the expiration date of a certificate so I can generate a work list by date on who needs to have a new certificate. I haven't been able to find the registry entry with this information on it. Please help

[kstanush]

Re: Publlished Certificates

Unfortunately I don't know where or how this information is stored. I suspect that its in the certificate itself and it can't be read directly.