//C# Solução *.csproj - .NETFramework,Version=v4.8 -

namespace XXXXXXXXX
{
    partial class XXXXXXXXX : ServiceBase
    {
        private readonly ...;

        public XXXXXXXXX()
        {
            InitializeComponent();
            AppContext.SetSwitch("Switch.System.Security.Cryptography.Xml.UseInsecureHashAlgorithms", true);
            AppContext.SetSwitch("Switch.System.Security.Cryptography.Pkcs.UseInsecureHashAlgorithms", true);
            AppDomain.CurrentDomain.UnhandledException += OnError;
    }
    ...
    ...
    }
}