Project Edit
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>disable</ImplicitUsings>
<Nullable>disable</Nullable>
</PropertyGroup>
</Project>
Migrating RealProxy Usage to DispatchProxy - .NET Blog (microsoft.com)