Install the new IIS SSL Server certificate by clicking on the key in the www directory (usually a broken key icon with a line through it), and select "Install Key Certificate".

Enter the Password.

When you are prompted for bindings, add the IP and Port Number. "Any assigned" is acceptable if you do not have any other IIS SSL certificates installed on the web server.
Note: Multiple certificates installed on the same web server will require a separate IP Address for each because SSL does not support host headers.

Go to the Computers menu and select the option "Commit Changes", or close Key Manager and select "Yes" when prompted to commit changes.

The new IIS SSL Server certificate is now successfully installed.

Back up the Key in Key Manager by clicking on Key menu> Export -> Backup File. Store the backup file on the hard drive AND off the server.

Your IIS SSL Certificate will have been emailed to you. The email will also contain two other Certificates: GTECyberTrustGlobalRootCA.crt and ComodoClass3SecurityServicesCA.crt - save these Certificates to the desktop of the webserver machine.

It is essential that you have installed these two Certificates on the machine running IIS 4. You may also download them below:

1 to 2 year certificate files :

GTECyberTrustRootCA
ComodoClass3SecurityServicesCA

3 year certificate only files :

GTECyberTrustRootCA
ComodoClass3SecurityServicesCA

Once you have installed the Certificates, restart the machine running IIS 4. You must now complete one of the following procedures - the procedure you follow is dependent on the Service Pack that has been implemented on your machine running IIS4.

ServicePack 3:
Install the above certificates in your Internet Explorer by opening each certificate and clicking "Install Certificate". You may then use this IIS CA (下載後請將root2iis_bat改名為root2iis.bat檔案)batch file to transfer all root certificates from your Internet Explorer to the IIS (see Microsoft KnowledgeBase Q216339).

ServicePack 4:
Install the above certificates manually in a specicfic root store (you may also want to read (see Microsoft KnowledgeBase Q194788):

• Install the GTECyberTrustGlobalRootCA.crt certificate by double clicking on the corresponding file this will start an installation wizard
• select Place all certificates in the following store and click browse
• select Show physical stores
• select Trusted Root Certification Authorities
• select Local Computer, click OK
• back in the wizard, click Next, click Finish

Repeat the same for the ComodoClass3SecurityServicesCA.crt, however choose to place the certificates in the Intermediate Certification Authorities store.

ServicePack 5:
Same as SP4.

ServicePack 6:
Same as SP5.

Reboot the web server to complete the installation.