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How to move certificate and key from Apache to IIS?

Use command:
-> openssl pkcs12 -export -inkey KEY_FILE_NAME -in CERT_FILE -out SOMETHING.pfx Note: Remember to change the Key file name, Cert file and Something for real data.

If you would like to combine all certificates (Root, Intermediate and Domain/Page) with private kay to .pfx/p12 file use:
-> openssl pkcs12 -export -inkey KEY_FILE_NAME -in CERT_FILE -certfile APACHE_CA_BUNDLE -out SOMETHING.pfx