‘The handle is invalid. 0x80070006 (WIN32: 6)’ when dumping CA database

As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. Issue Consider the following scenario: you are dumping CA database by using certutil, PowerShell or any other tool that utilizes ICertView2 interface and at some point you receive the following error Certutil: CertUtil: -view command […]

Web server certificate enrollment with SAN extension

As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. Many of windows administrators requires to setup SSL on their web servers and mostly they wish to use certificates with the Subject Alternative Name extension that allows to map a single certificate to a multiple […]

PowerShell PKI (PSPKI) 3.7 enhancements – OCSP Revocation Configuration Management

Hello everyone, today is a second post in OCSP server management in Windows PowerShell. First blog post in the series was about OCSP server management. Today, I will discuss about Online Responder revocation configuration management using Windows PowerShell. Intro Every single Microsoft Online Responder is capable to provide certificate status for multiple different certification authorities. […]

The case of accidentally deleted user certificates

As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. Sometimes users accidentally delete their certificates from personal store. After that users are not able to perform certificate-based tasks, i.e. decrypt files or mail, sign data and authenticate. Some organizations implement Key Archival for certificate […]

PowerShell PKI Module (PSPKI) v3.7

Hello everyone, I’m excited to announce a public availability of PowerShell PKI module v3.7. New version is a big work around various aspects such as Microsoft Online Responder management, security descriptors. Here is a summary of what we’ve done. PowerShell Module Compatibility We have added syntax compatibility with PowerShell 6.x and newer PowerShell versions. New […]

SSL Certificate Verifier Tool v1.5.4 update

Hello everyone! This week, we help a “Validating SSL Certificates the Easy Way” webinar where we talked about common SSL/TLS and displayed our free and open source SSL Certificate Verifier tool in action with new features. Previous version of the tool was GUI-only and lacked exportable reports and any automation/scripting capabilities. I’ve addressed these limitations […]

You cannot download CA certificate from web enrollment pages

As part of joining PKI Solutions, several blog posts from my old site are re-posted here for visibility and thoroughness. When you try to download CA certificate from web enrollment pages you get a prompt message with unreadable proposed file name: Do you want to save certnew_cer?ReqID=CACert&Renewal=1&Enc=bin (1,09 KB) from And when you press ‘Save’ […]