SSL certificate is already running and need to buy another one running on Windows server 2003 R2

I have got web server which has SSL certificate from one company and I m not renewing from the same company.  I will buy the certificate from another vendor.  To do this I need to create a CSR request.  But in the IIS it is not giving me an option to create.  It gives the option only to renew the certificate or remove the certificate.  Is there any way to create a CSR request without removing the existing SSL certificate.

Or I remove it and create the CSR and then put back the exisiting SSL certificate.
elawAsked:
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ParanormasticConnect With a Mentor Cryptographic EngineerCommented:
Create a new temp site and make a new CSR there, make sure to change the name to be what you want for the production site if necessary.  After you install the cert to the same temp site, go through the wizard one last time and export the cert including private key to a .pfx file, then go to prod site and run through the wizard to import the new cert.
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chuckyhConnect With a Mentor Commented:
When you create the temp site, and install the new cert.  Make sure you don't use the same HTTPS port as your real site. use 4434 or 444 or anything other than 443. If you use 443 it will turn off the real site's HTTPS.
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ParanormasticCryptographic EngineerCommented:
when you create the temp site, just keep it stopped and it doesn't matter...
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mvgeertruyenConnect With a Mentor Commented:
You can create a cert request anyware. I usually do it on my workstation - just use the server name to create the request. Once I receive the response I complete it on my workstation, export it and import it on the server.
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