2. Getting the system ready for libykcs11.dll

First, verify that your native version of SSH is at least OpenSSH_for_Windows_8.1p1. To verify, open a command prompt and type:

ssh -V

If the version is greater than 8.1p1, then continue. Otherwise, upgrade your SSH client.

For your SSH client to be able to use the libykcs11.dll library, it will need to be within your system's PATH.

To do this,

1. System Properties -> Advanced -> Environment Variables -> System variables

2. Select the "Path" and then "Edit..."

"System Properties" - Environment Variables in the bottom right.

3. Enter "C:\Program Files\Yubico\Yubico PIV Tool\bin\" as part of your new PATH.

Editing PATH

4. Click on "OK".

On Windows 11, another way to locate this section is to search for "system variables" and then select "Environment Variable"