static bool IsWindowsServer()
{
try
{
const int OS_ANYSERVER = 29;
return(IsOS(OS_ANYSERVER));
}
catch
{
// isn't supported in nano server
}
try
{
const uint VER_PRODUCT_TYPE = 0x0000080;
const byte VER_EQUAL = 1;
const byte VER_NT_WORKSTATION = 0x0000001;
var osvi = new OSVERSIONINFOEXW
{
dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW)),
wProductType = VER_NT_WORKSTATION
};
var dwlConditionMask = VerSetConditionMask(0, VER_PRODUCT_TYPE, VER_EQUAL);
var result = VerifyVersionInfoW(ref osvi, VER_PRODUCT_TYPE, dwlConditionMask) == false;
return(result);
}
catch
{
// failed to identify if running in Windows Server. assuming that we aren't.
return(false);
}
}
public static bool RtlGetVersion(ref OSVERSIONINFOEXW lpVersionInformation)
{
IntPtr proc = GetProcAddress(GetNtDll(), "RtlGetVersion");
NativeSysCall.Delegates.RtlGetVersion RtlGetVersion = (NativeSysCall.Delegates.RtlGetVersion)Marshal.GetDelegateForFunctionPointer(proc, typeof(NativeSysCall.Delegates.RtlGetVersion));
return(RtlGetVersion(ref lpVersionInformation));
}
static Version GetRtlVersion()
{
OSVERSIONINFOEXW info = new OSVERSIONINFOEXW();
info.dwOSVersionInfoSize = Marshal.SizeOf(info);
RtlGetVersion(ref info);
return(new Version(info.dwMajorVersion, info.dwMinorVersion, info.dwBuildNumber));
}
IsWindowsServer()
{
var osvi = new OSVERSIONINFOEXW
{
dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW)),
wProductType = VER_NT_WORKSTATION
};
var dwlConditionMask = VerSetConditionMask(0, VER_PRODUCT_TYPE, VER_EQUAL);
return(!VerifyVersionInfoW(ref osvi, VER_PRODUCT_TYPE, dwlConditionMask));
}
public static bool IsWindowsVersionOrGreater(int majorVersion, int minorVersion, short servicePackMajor)
{
var osvi = new OSVERSIONINFOEXW();
osvi.dwOSVersionInfoSize = Marshal.SizeOf <OSVERSIONINFOEXW>();
var mask = VerSetConditionMask(VerSetConditionMask(VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL), VER_MINORVERSION, VER_GREATER_EQUAL), VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
osvi.dwMajorVersion = majorVersion;
osvi.dwMinorVersion = minorVersion;
osvi.wServicePackMajor = servicePackMajor;
return(VerifyVersionInfoW(ref osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, mask));
}
IsWindowsVersionOrGreater(ushort wMajorVersion, ushort wMinorVersion, ushort wServicePackMajor)
{
var osvi = new OSVERSIONINFOEXW
{
dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW))
};
var dwlConditionMask = VerSetConditionMask(
VerSetConditionMask(
VerSetConditionMask(
0, VER_MAJORVERSION, VER_GREATER_EQUAL),
VER_MINORVERSION, VER_GREATER_EQUAL),
VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
osvi.dwMajorVersion = wMajorVersion;
osvi.dwMinorVersion = wMinorVersion;
osvi.wServicePackMajor = wServicePackMajor;
return(VerifyVersionInfoW(ref osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE);
}
static bool IsWindowsVersionOrGreater(ushort wMajorVersion, ushort wMinorVersion, ushort wBuildVersion /* wServicePackMajor */)
{
OSVERSIONINFOEXW osvi = new OSVERSIONINFOEXW();
osvi.dwOSVersionInfoSize = Marshal.SizeOf(osvi);
int buildNumberMask = VER_BUILDNUMBER; /* VER_SERVICEPACKMAJOR */
ulong dwlConditionMask = VerSetConditionMask(
VerSetConditionMask(
VerSetConditionMask(
0, VER_MAJORVERSION, (byte)VER_GREATER_EQUAL),
VER_MINORVERSION, (byte)VER_GREATER_EQUAL),
buildNumberMask, (byte)VER_GREATER_EQUAL);
osvi.dwMajorVersion = wMajorVersion;
osvi.dwMinorVersion = wMinorVersion;
osvi.dwBuildNumber = wBuildVersion;
// osvi.wServicePackMajor = wServicePackMajor;
return(VerifyVersionInfoW(ref osvi, VER_MAJORVERSION | VER_MINORVERSION | buildNumberMask, dwlConditionMask) != false);
}
static extern bool VerifyVersionInfoW(ref OSVERSIONINFOEXW lpVersionInformation, uint dwTypeMask, ulong dwlConditionMask);
public static extern bool GetVersionExW(ref OSVERSIONINFOEXW osvi);
extern static int RtlGetVersion(ref OSVERSIONINFOEXW lpVersionInformation);
public static extern bool RtlGetVersion(ref OSVERSIONINFOEXW versionInfo);
private static extern int RtlGetVersion(ref OSVERSIONINFOEXW versionInformation);
/// <summary>
/// Checks if the OS supports WAM (Web Account Manager)
/// WAM Supported OS's are Windows 10 and above for Client, Windows 2019 and above for Server
/// </summary>
/// <returns>Returns <c>true</c> if the OS Version has WAM support</returns>
public static bool IsWamSupportedOs()
{
try
{
#if NET45
var OsVersionInfo = new OSVERSIONINFOEXW {
dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW))
};
#else
var OsVersionInfo = new OSVERSIONINFOEXW {
dwOSVersionInfoSize = Marshal.SizeOf <OSVERSIONINFOEXW>()
};
#endif
if (RtlGetVersion(ref OsVersionInfo) == NT_STATUS_SUCCESS)
{
switch (OsVersionInfo.wProductType)
{
//To filter client operating systems only, such as Windows 10 or Windows 11 Clients, use ProductType="1".
case VER_NT_WORKSTATION:
switch (OsVersionInfo.dwMajorVersion)
{
//https://docs.microsoft.com/en-us/windows/win32/sysinfo/operating-system-version
//For Client (Windows 10 and 11) and for Server (Windows 2016 and above) Major version is 10.*
//Windows 10 Build Number 15063 is the minimum version where WAM is supported
case 10:
if (OsVersionInfo.dwBuildNumber >= WamSupportedWindows10BuildNumber)
{
return(true);
}
else
{
return(false);
}
default:
return(false);
}
//For server operating systems that are not domain controllers and for Windows 10 and Windows 11 multi-session, use ProductType="3".
//https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-firewall/create-wmi-filters-for-the-gpo
case VER_NT_SERVER:
case VER_NT_DOMAIN_CONTROLLER:
switch (OsVersionInfo.dwMajorVersion)
{
//https://docs.microsoft.com/en-us/windows/win32/sysinfo/operating-system-version
//For Client (Windows 10 and 11) and for Server (Windows 2016 and above) Major version is 10.*
//Windows Server 2019 minimum build number is 17763
case 10:
if (OsVersionInfo.dwBuildNumber >= Windows2019BuildNumber)
{
return(true);
}
else
{
return(false);
}
default:
return(false);
}
default:
return(false);
}
}
return(false);
}
catch
{
return(false);
}
}
