Metro apps

[WizardOfWoz]

When explorer.exe is not the default shell (as specified by the Winlogon key) metro apps don't work and I get a "class not registered" error when trying to launch them. Is there a way to use them with explorer as the default shell?

[Tripredacus]

Are you using one of the pre-built solutions as listed here:

Or are you using your own method?

[Tihiy]

When explorer.exe is not the default shell (as specified by the Winlogon key) metro apps don't work and I get a "class not registered" error when trying to launch them. Is there a way to use them with explorer as the default shell?

No. Metro UI has to be started, and it's possible only from Microsoft digitally signed binary.