http://winaero.com/blog/exclusive-how-to-start-a-modern-app-from-desktop-without-going-to-the-metro-start-screen/
after reading this, you can do things like this with Rainmeter:
Code: Select all
LeftMouseUpAction=[explorer.exe shell:AppsFolder\SchweizerischeBundesbahne.SBBUhr_cacfmp0t4hxer!App]