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MsixCertImportTool 3.14.1.4, published by Chill-Astro, is a lightweight Windows utility designed to streamline the deployment of digital certificates required for MSIX-packaged applications. Falling under the System Administration category, the program addresses the common obstacle developers and IT administrators face when side-loading or internally distributing MSIX bundles that are signed with enterprise or test certificates. By automating the import of .cer, .pfx, or .crt files into the appropriate Windows certificate stores—most notably the Trusted People and Trusted Root stores—the tool eliminates manual steps in PowerShell or the MMC snap-in, reducing preparation time for large-scale rollouts. Typical use cases include prepping a fleet of PCs in a corporate environment so that line-of-business MSIX apps install without untrusted-publisher warnings, enabling QA teams to validate internally signed packages on clean test machines, and allowing educational institutions to distribute custom Store-for-Business apps without exposing private keys. Four incremental versions have appeared since the utility’s introduction, each refining command-line switches, adding silent-mode operation, and improving compatibility with the evolving MSIX schema. Version 3.14.1.4 remains the current release, offering enhanced logging for troubleshooting failed imports and a checksum verification routine that ensures certificate integrity before placement in the store. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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