Help using wacs v2.1.0.539 - Can't find my certificate

Hi All,

I seem to be successfully creating a Let’s Encrypt certificate for my domain, but I can’t find where the certificate is.

I need to get the pfx file, but can’t find it anywhere on my server. After reading a number of posts here, many seem to get asked what folder to write the certificate to, but I didn’t see anything like that.
I have looked inside the Certificate manager, and it’s are not in there anywhere.

I am using wacs.exe version

Any ideas would be greatly received. Thanks.


My domain is: and I’m trying to create a certificate for a sub-domain :

I ran this command: wacs.exe

Options used
M: Create new certificate (full options)
4: Manual input
(to accept default friendly name)
2: [http-01] Serve verification files from memory (recommended)
2: RSA key
3: Windows Certificate Store
3: No additional storage steps required
4: Do not run any (extra) installation steps

It produced this output:
[WARN] First chance error calling intoACME server, retrying with new nonce…
[INFO] Authorize identifier:
[INFO] Authorizing: using http-01 validation (SelfHosting)
[INFO] Authorization result: valid
[INFO] Requesting Certificate [Manual]
[INFO] Store with CertificateStore…
[INFO] Installing certificate in the certificate store
[INFO] Adding certificate [Manual] 2020/2/10 11:32:15 to store WebHosting
[INFO] Installing with None…
[INFO] Scheduled task looks healthy

My web server is (include version):
EWB Web Server (not using IIS or any of the other usual ones)

The operating system my web server runs on is (include version):
Windows Server 2016 Datacenter
Version 1607
OS Build 14393.3474

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don’t know):
Yes (assume this means command prompt)

I’m using a control panel to manage my site:
Plesk web admin edition

Hi @paul.coshott,

Welcome to the community forum!

According to this guide, WACS will automatically configure your IIS server.

This website states you can find the key pair at C:\Users\%username%\AppData\Roaming\letsencrypt-win-simple.

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