I'm having a bit of problem. I've went and registered new certificate for my domain mail.company.com at StartCom. This is free one year certificate. I've created it from scratch on website and haven't used IIS to generate request. Now the problem is if i install the generated certificate I get error message when i use SSLDiag to verify the certificate (since OWA doesn't work): "#WARNING: You DON'T have a private key that corresponds to this certificate".
So how do I make it install with private key. I do have private key and password for it (it was generated for me on website) just it's simple .key file. The ssl.crt when imported to machine thru MMC Computer Certificates cna be used in IIS but the error is as above.