Microsoft KB Archive/942061

= Error message when you visit a Web site that is hosted on IIS 7.0: &quot;HTTP Error 403.16 - Forbidden&quot; =

Article ID: 942061

Article Last Modified on 10/5/2007

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APPLIES TO


 * Microsoft Internet Information Services 7.0

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SYMPTOMS
You have a Web site that is hosted on Internet Information Services (IIS) 7.0. When you visit the Web site in a Web browser, you may receive an error message that resembles the following:

Server Error in Application &quot; &quot;

HTTP Error 403.16 - Forbidden

HRESULT: 0x800b0109

Description of HRESULT

Your client certificate is either not trusted or is invalid.



CAUSE
This problem occurs because the root certificate of the certification authority is not in the Trusted Root Certification Authorities certificate store on the IIS Web server.

Note The root certificate of the certification authority is used to issue the client certificate.



RESOLUTION
On the IIS Web server, install the root certificate of the certification authority in the Trusted Root Certification Authorities certificate store. To do this, follow these steps:
 * 1) On the IIS Web server, click Start, type mmc.exe in the Start Search box, right-click mmc.exe, and then click Run as administrator.

Note If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
 * 1) On the File menu, click Add/Remove Snap-in.
 * 2) Under Available snap-ins, click Certificates, and then click Add.
 * 3) Click Computer account, and then click Next.
 * 4) Click Local computer, click Finish, and then click Close.
 * 5) To exit the wizard, click OK.
 * 6) Expand Certificates, expand Trusted Root Certification Authorities, right-click Certificates, point to All Tasks, and then click Import.
 * 7) In the Certificate Import Wizard, click Next.
 * 8) In the File name box, type the location of the root certificate of the certification authority, and then click Next.
 * 9) Click Next, and then click Finish.

Keywords: kbexpertiseadvanced kbtshoot kbprb KB942061

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