api-ms-win-crt-runtime-l1-1-0.dllyou may need KB2999226.
hostfxr.dllyou may need KB2533623.
Server Name Indication (SNI) is supported from IIS 8.0 (Windows Server 2012) and above. This feature allows you to have multiple HTTPS certificates on the same IP address. Without it, you can only configure a single certificate per IP address.
If you want to have SSL for multiple sites with multiple domains with IIS 7.5 or lower all bound to the same IP address your choices are:
When win-acme creates the binding for a new certificate, it will bind the wildcard (*)
IP address by default. In other words, incoming connections on all network interfaces
will handeled using the certificate. You can customize this with the
switch from the command line, or manually after win-acme created the binding. On renewal,
the program will preserve whatever setting is configured in IIS.
Wildcard bindings are only supported on IIS 10 (Windows Server 2016+). Wildcard certificates can be created with older versions of IIS but their bindings will have to be configured manually.
Updating FTPS binding is only supported for IIS 7.5 (Windows 2008 R2) and above.