Anleitung
  1. Open file.

  2. Press Install Certificate.

  3. Local Machine. Next.

  4. Possibly user and password of an administrator are requested.
  5. Next.
  6. Finish.


warning ATTENTION:

If the certificate is used on another server, then the certificate including the private key must be exported.

Call the certificate management with certlm.msc.

Export the server certificate with private key.