Hi John,
Thank you for contacting us. Unfortunately, at this time, there is no install package for mSecure as it is only available for download from Microsoft Store. The good news is that at some point, we hope sooner rather than later, Microsoft will be making changes to the architecture of there UWP apps, and that should make it possible to install mSecure as an .exe install. We're not sure when these changes will be available, but we hope it's soon!
John