A step-by-step guide to signing ClickOnce manifests in Visual Studio using a KSP (Key Storage Provider) library instead of legacy CSP-based certificates. Covers installing the certificate in the Windows store, verifying KSP support, enabling manifest signing in Visual Studio's Signing tab, configuring a timestamp server, publishing the application, verifying the signature, troubleshooting common issues, and security best practices for hardware-backed keys.
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