Event ID - 45

Event Id45
SourceMicrosoft-Windows-CertificationAuthority
DescriptionThe "%1" exit module "%2" method caused an exception at address %4. The exception code is %3.
Event InformationAccording to Microsoft :
Cause
This event is logged when The Active Directory Certificate Services (AD CS) exit module performs several functions after a certificate has been issued, such as publishing the certificate to the file system or sending an e-mail notification.
Resolution
Address an exit module error
An Active Directory Certificate Services (AD CS) exit module can perform additional functions after a certificate has been issued, such as publishing the certificate to the file system or sending an e-mail notification.
.
If there is a problem with an exit module and the error cannot be resolved by addressing related symptoms:
Verify
The process you use to confirm that an exit module is functioning properly depends on the exit module you are using.
If you are using the default Microsoft exit module:
1.Submit and process a certificate request by following the procedure in the "Process a certificate request" section.
2.If the request is processed without additional errors, and any Simple Mail Transfer Protocol (SMTP) notifications you have configured in the registry are sent, the exit module is functioning properly.
If you are using a custom or non-Microsoft exit module, confirm that the custom exit module is completing the additional tasks that it was intended to perform.
Process a certificate request
To confirm that certificate request processing is working properly:
1.Open the Certificates snap-in for the user account.
2.In the console tree, double-click Certificates - Current User, and click Personal.
3.On the menu, point to All Tasks, and click Request New Certificate to start the Certificate Enrollment wizard.
4.Use the wizard to create and submit a certificate request for any type of certificate that is available.
5.Confirm that the enrollment completes successfully and no errors are reported.
Reference LinksEvent ID 45 from Source Microsoft-Windows-CertificationAuthority

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