Export Keys from a windows server to apache server:

1) Startup mmc
    a] File > Add/Remove Snap in > Certificates:
        a1} Computer Account > Local Computer (Finish with “OK”
    b] Select Certificates >> Personal >> Certificates
    c] Select Certificate (*.domainname.com)
        b1} Right click > All Tasks > Export
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        b2} “Yes, Export the private Key”
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        b3} next (use defaults [PKCS #12 no boxes checked})
        b4} password (<enter anything>) << you are setting this password
        b5} Name your export && Finish

2) Extract the Key & Certificate from the pkcs file & enjoy
    a] Export the Private key:
       

openssl pkcs12 -in filename.pfx -nocerts -out key.pem

    b] Export the certificate file:
       

openssl pkcs12 -in filename.pfx -clcerts -nokeys -out cert.pem

    c] Remove the passphrase from the key so apache won’t prompt for passphrase:
       

openssl rsa -in key.pem -out server.key