Created On: 12 November 2010 Support for Client Certificates for secure applications (HTTPS) was introduced with Silk Performer 2010 R2. You can select a client certificate during script recording and APIs are now available for importing and deleting certificates from the Microsoft certificate store, which is used by Silk Performer browser-driven load testing feature. Certificate handling for browser-based Web load testing works independently of certificate handling for protocol-based Web testing. This means that certificates need to be imported manually via Windows Internet Explorer's Internet Options menu entry (or the management console snap-in certmgr.msc). If authentication works with Windows Internet Explorer 8 it will also work for browser-based load testing. Initial configuration involves: When importing your certificate, disable strong private key protection: On the Certificate Import wizard Password page, uncheck the Enable strong private key protection checkbox Disable server certificate revocation: Open Windows Internet Explorer's Tools menu and select Internet Options. The Internet Options dialog opens. Click the Advanced tab. Uncheck the Check for server certificate revocation* checkbox. Click OK. Activate prompting of the client certificate selection dialog box: Open Windows Internet Explorer's Tools menu and select Internet Options. The Internet Options dialog opens. Click the Security tab. Click Custom Level... The Security Settings page opens. Scroll down to Don't prompt for client certificate selection when no certificates or only one certificate exists and select the Disable option box. Click OK. Restart Windows Internet Explorer. Please note - The certificate APIs only work with Windows versions =6.1 (so from Windows 7 onward), and Internet Explorer versions from IE8 onward. Incident #2456571 Old KB# 32495