Package Re-Sign

With the introduction of Windows 10, Microsoft sought to streamline the development process for their freshly integrated ecosystem of desktops, phones, gaming consoles and Mixed Reality headsets by creating the Universal Windows Platform, thus removing the need for applications to be rewritten for each operating system version.

In an attempt to safeguard users’ security, UWP packages are required to be signed using digital certificates that attest their genuineness, which, in turn, made it virtually impossible to sideload the programs without them. While the measure does protect consumers, it also renders the testing process for programmers, which is where Package Re-Sign comes into play.

The primary and most reputable source of UWP apps remains the Microsoft Store, for most end-users. However, some developers may prefer the ease of use of platforms such as GitHub’s repositories when it comes to unfinished or experimental builds of their program that may require more in-depth feedback or contributions from the community to speed up its development process.

When it comes to APPX and MSIX packages, their certificates are valid for only a year after the moment of signing, ultimately preventing users from installing any closed-source programs with outdated certificates. As such, programmers can make use of the app at hand to re-sign their installation packages before re-uploading them on their respective platforms for anyone tempted to try out their features.

Once downloaded, the app’s functions can be carried out either through the instruction-based, standalone setup that guides developers throughout the process, or via the terminal with the help of a set of precise commands for those with more specific needs. Finally, the program also creates batch files that bundle the implementation of the certificate with the package itself to aid users when installing the app.

Whether you want to improve the sideloading process for your users by including batch scripts to install the certificate alongside the app itself, or you are on the lookout for a more automated way of distributing your programs with valid certificates for installing older programs, Package Re-Sign may be the right choice given its flexible usage patterns and portable form factor.