Windows App Cert Kit [extra Quality] -

If you are a Windows developer targeting the Microsoft Store, you must master this tool. It successfully prevents "junk" apps from flooding the marketplace, which is good for the ecosystem, even if it makes the developer's life harder.

Sometimes WACK will flag an issue that isn't actually a problem for the end user (like a specific API usage that is standard in your framework but flagged by Microsoft's strict rules). Overriding these "failures" can be difficult and requires time-consuming waivers. windows app cert kit