Unknown Publisher

When I needed to update Vassal on my work computer the 3.6.19 exe file couldn’t download fully because it was deemed from an unknown publisher. Windows Defender couldn’t pass the file either for the same reason: unknown publisher.

I pulled the .exe file over using OneDrive from my personal computer to my work computer. The file was blocked from loading due to company IT security software saying I needed Administrator privileges. My company does allow for some personal software to be loaded but will not provide support. How do I install Vassal without triggering a need for Admin privileges?

Have you tried what’s recommended here?