Note: This portion of the TechNet Wiki is the new landing page for the Microsoft Root Certificate Program.  Until all the existing content is transferred over and the existing Program web pages are modified and retired, please refer to them for current and authoritative information about the Program.

For general information on the Microsoft Root Certificate Program and the operation of root certificates in Windows, visit http://technet.microsoft.com/en-us/library/cc751157.aspx.

For information on currently distributed root certificates and Certification Authorities (CAs) who are members of the Program, visit the Windows Root Certificate Program Members page.

NEW! March 23, 2011: I have posted a list of all member CAs and their root certificates in distribution via the Program on the Windows Root Certificate Program Members page.

This list consists of all current member CAs, and the root certificates distributed by the Program, through this month's March 2011 root update.  Its far from perfect, and I'm working on getting the last couple columns to appear for you.  But this is a frequently requested resource, and I wanted to get it out there sooner rather than later.

Important Links and Articles

Windows Root Certificate Program - Technical Requirements
KB931125 contains a good description of how root certificates are distributed on different versions of Windows - this has changed from release to release, and it can be important to understand some of the differences between OS versions.

Notices
    March 24, 2011 - Relation of root update package to Security Advisory 2524375
    March 3, 2011 - Troubleshoot Root Certificate Update failure