I would love to leave this as a Registry only app but as there is no …

…mention of "Windows 11" anywhere in the Registry on the Insider Preview builds and msinfo32 is picking it up correctly, I'm hedging for now. If retleased Windows 11 updates the ProductName in the registry, I'll revert this change

WinVerEx/AssemblyInfo.cs

@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.4.0.0")]
-[assembly: AssemblyFileVersion("1.4.0.0")]
+[assembly: AssemblyVersion("1.3.0.0")]
+[assembly: AssemblyFileVersion("1.3.0.0")]

WinVerEx/Program.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Management;
 using Microsoft.Win32;
 
 namespace WinVerEx
@@ -8,8 +9,14 @@ class Program
         static void Main(string[] args)
         {
             // Get the friendly name of Windows
-            String queriedOSName = System.Environment.OSVersion.Platform.ToString();
-
+            String queriedOSName = String.Empty;
+            ManagementObjectSearcher managementObjectSearcher = new ManagementObjectSearcher("SELECT Caption FROM Win32_OperatingSystem");
+            foreach (ManagementObject managementObject in managementObjectSearcher.Get())
+            {
+                queriedOSName = managementObject["Caption"].ToString();
+                break;
+            }
+
             // All of the data we're looking for lives under the same Registry Key
             RegistryKey currentVersion = Registry.LocalMachine.OpenSubKey(@"Software\Microsoft\Windows NT\CurrentVersion");