The following instructions will guide you through the CSR generation process on Microsoft IIS 8.
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Click Start, Control Panel, System and Security, Administrative Tools, and then select Internet Information Services (IIS) Manager.
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In the left Connections menu, select the server name (host) where you want to generate the request.
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In the center menu, click the Server Certificates icon under the Security section near the bottom.
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In the right Actions menu, click Create Certificate Request.
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In the Distinguished Name Properties window, enter in the required CSR details and then click Next.
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In the Cryptographic Service Provider Properties window, select Microsoft RSA SChannel Cryptographic Provider and Bit Length of 2048, then click Next.
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Note: Bit Length: 2048 is the current industry standard.
You may choose a larger key size, but only if you have a requirement to do so, as longer key lengths increase latency and may reduce compatibility.
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Click Browse to specify the location where you want to save the CSR as a ".txt" file and click Finish.
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Locate and open the newly created CSR from the specified location you choose in a text editor such as Notepad and copy all the text including:
-----BEGIN CERTIFICATE REQUEST-----
And
-----END CERTIFICATE REQUEST-----
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