How to transfer certificates on IIS servers?
Click “Start -> Run” and type MMC, then click Enter. Next click “File -> Add/Remove Snap-in” in the menu, afterwards click “Add” and select “Certificates”. Now choose Computer Account then Local Computer then click “Next -> Close” and “OK”. Locate the server certificate and left-click the “Certificates” container, then choose “All tasks -> Export”. Select including private key and CA certificates. Provide a password and save the file at a convenient location. Now the file may be transfered to the target server and imported in the same fashion using the MMC utility.