"System.NotImplementedException" in Microsoft.Windows.Management.Deployment.ResetPackageAsync version 1.6.241114003

[tonymet]

Describe the bug

Microsoft.Windows.Management.Deployment.ResetPackageAsync() (documentation) raises System.NotImplementedException . Other methods are working in the same namespace , including IsPackageReady . Documentations says the methods are supported since WinSDK 1.5 .

Example Code:
https://gist.github.com/tonymet/35f8c24e8f27e010c1cdea621abf85dd#file-mainwindow-xaml-cs

Steps to reproduce the bug

1. create a method with this call

var resultsList = pm.FindPackagesForUserWithPackageTypes(string.Empty, PackageTypes.Main);
foreach (var item in resultsList)
{
    Debug.WriteLine(item.DisplayName);
    var result1 = pdm.IsPackageReady(item.Id.FullName);  // returns true
    var result2 = await pdm.ResetPackageAsync(item.Id.FullName);   // throws System.NotImplementedException
}

Expected behavior

msix package should be reset, similar to Powershell cmdlet Reset-AppxPackage

Screenshots

Example .cs & exception trace

System.NotImplementedException
  HResult=0x80004001
  Message=Not implemented

Not implemented

  Source=WinRT.Runtime
  StackTrace:
   at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|38_0(Int32 hr)
   at ABI.Microsoft.Windows.Management.Deployment.IPackageDeploymentManagerMethods.ResetPackageAsync(IObjectReference _obj, String package)
   at Microsoft.Windows.Management.Deployment.PackageDeploymentManager.ResetPackageAsync(String package)
   at PackagesCleanup.MainWindow.<resetItem_Click>d__9.MoveNext() in C:\Users\tonymet\source\repos\PackagesCleanup\PackagesCleanup\MainWindow.xaml.cs:line 62

NuGet package version

Windows App SDK 1.6.3: 1.6.241114003

Packaging type

Packaged (MSIX)

Windows version

Insider Build (Version 10.0.22635 Build 22635)

IDE

Visual Studio 2022

Additional context

OS Name Microsoft Windows 11 Pro
Version 10.0.22635 Build 22635

Properties

 <TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
 <TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>
  <SupportedOSPlatformVersion>10.0.26100.0</SupportedOSPlatformVersion>
 <ItemGroup>
   <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.1742" />
   <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.6.241114003" />
 </ItemGroup>

[tonymet]

related: #4817

[tonymet]

1cd3034#diff-ac9cf5a2226fe599adce4f9c35f97565451fd0c1f9fcb9d45f7c27317dab11ac

[whiskhub]

I think you're first supposed to call PackageDeploymentManager.IsPackageDeploymentFeatureSupported(PackageDeploymentFeature.ResetPackage) and check whether the feature is supported (which is always returning false). So I guess it's expected.

The documentation is sadly still quite terrible, there is no mention of this: https://learn.microsoft.com/en-us/windows/windows-app-sdk/api/winrt/microsoft.windows.management.deployment.packagedeploymentmanager.ispackagedeploymentfeaturesupported?view=windows-app-sdk-1.6

[whiskhub]

Although I do wonder, why can PowerShell reset a MSIX package but not the WASDK?

I ilspied into the Reset-AppxPackage PowerShell code, and it seems to be calling some undocumented function. Seems to be just as undocumented as the MsixResetPackageAsync function initially mentioned in the WASDK code.

[DllImport("AppXDeploymentClient.dll")]
private static extern int AppxResetPackage([MarshalAs(UnmanagedType.LPWStr)] string moniker);

[tonymet]

PackageDeploymentManager.IsPackageDeploymentFeatureSupported(PackageDeploymentFeature.ResetPackage) a

thank you and you are right that the call returns false. This bug may be best addressed by updating the documentation. why have the API if it's hardcoded false?

[tonymet]

thank you for the dllspy tip . I'll see if I can reverse-engineer that call.