In my scenario, I needed an application to capture information about a computer to receive possible error reports and statistics.
I did not find solutions in which the application manifest was to be added. Most of the offers that I found while searching on Google offered exactly that, unfortunately.
The fact is that when using the manifest, each OS version must be added manually so that this OS version can communicate itself at runtime.
In other words, it becomes a race condition. A user of my application can very well use the version of my application that precedes the OS used. I would need to update the application immediately when Microsoft will release a new version of the OS. I also have to get users to update the application while updating the OS.
In other words, not very doable .
After looking at the parameters, I found several links (surprisingly few compared to the application manifest), which instead suggested using a registry search.
My ComputerInfo class (chopped off) with the WinMajorVersion , WinMinorVersion and IsServer as follows:
using Microsoft.Win32; namespace Inspection { /// <summary> /// Static class that adds convenient methods for getting information on the running computers basic hardware and os setup. /// </summary> public static class ComputerInfo { /// <summary> /// Returns the Windows major version number for this computer. /// </summary> public static uint WinMajorVersion { get { dynamic major; // The 'CurrentMajorVersionNumber' string value in the CurrentVersion key is new for Windows 10, // and will most likely (hopefully) be there for some time before MS decides to change this - again... if (TryGeRegistryKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "CurrentMajorVersionNumber", out major)) { return (uint) major; } // When the 'CurrentMajorVersionNumber' value is not present we fallback to reading the previous key used for this: 'CurrentVersion' dynamic version; if (!TryGeRegistryKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "CurrentVersion", out version)) return 0; var versionParts = ((string) version).Split('.'); if (versionParts.Length != 2) return 0; uint majorAsUInt; return uint.TryParse(versionParts[0], out majorAsUInt) ? majorAsUInt : 0; } } /// <summary> /// Returns the Windows minor version number for this computer. /// </summary> public static uint WinMinorVersion { get { dynamic minor; // The 'CurrentMinorVersionNumber' string value in the CurrentVersion key is new for Windows 10, // and will most likely (hopefully) be there for some time before MS decides to change this - again... if (TryGeRegistryKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "CurrentMinorVersionNumber", out minor)) { return (uint) minor; } // When the 'CurrentMinorVersionNumber' value is not present we fallback to reading the previous key used for this: 'CurrentVersion' dynamic version; if (!TryGeRegistryKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "CurrentVersion", out version)) return 0; var versionParts = ((string) version).Split('.'); if (versionParts.Length != 2) return 0; uint minorAsUInt; return uint.TryParse(versionParts[1], out minorAsUInt) ? minorAsUInt : 0; } } /// <summary> /// Returns whether or not the current computer is a server or not. /// </summary> public static uint IsServer { get { dynamic installationType; if (TryGeRegistryKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion", "InstallationType", out installationType)) { return (uint) (installationType.Equals("Client") ? 0 : 1); } return 0; } } private static bool TryGeRegistryKey(string path, string key, out dynamic value) { value = null; try { var rk = Registry.LocalMachine.OpenSubKey(path); if (rk == null) return false; value = rk.GetValue(key); return value != null; } catch { return false; } } } }
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