How to register my app for Apps > Default apps

[pfusik]

Question

Using ProgId/Extension/Verb elements I can associate file types with my installed app.
What if I only want it available for "Open with" ? It looks like (at least on Windows 11) I need to create HKLM\MyApp\Capabilities\FileAssociations entries referring to progids. But this means I need to register a progid, but not associate an extension with it.
My only idea is to avoid ProgId/Extension/Verb and instead create the equivalent RegistryValue entries. My question is: are these two methods really equivalent or am I missing something?

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[robmen]

Yeah, the strongly typed registry items are designed around Windows Installer Advertising. They do not have the full set of functionality made available by Windows, especially stuff added after Vista. The fallback is to use RegistryValue element.

Also, to answer your question the ProgId and all those are all translated into registry values for you by the compiler if you don't set Advertise="yes' and there are a lot of good reasons to NOT set Advertise.