Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Tools / WSATConfig / Configuration / QfeChecker.cs / 1305376 / QfeChecker.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace Microsoft.Tools.ServiceModel.WsatConfig { using System; using System.Collections; using System.Collections.Generic; using System.Management; using System.Threading; using System.IO; using System.Runtime.InteropServices; static class QfeChecker { const string CLSID_CGatewayProtocol = "{37de7045-5056-456f-8409-c871e0f8b0e0}"; const string IID_IClassFactory = "{00000001-0000-0000-C000-000000000046}"; const string RegKeyClassIdRoot = @"SOFTWARE\Classes\CLSID\"; // //The hotfix that is checked here depends on the system. WinXP:912817, Win2k3:912818 // public static void CheckQfe() { bool qfeInstalled = false; int hr = SafeNativeMethods.CoInitializeEx(IntPtr.Zero, SafeNativeMethods.COINIT_APARTMENTTHREADED); if (hr >= 0) { try { SafeIUnknown pClassFactory = null; hr = SafeNativeMethods.CoGetClassObject(new Guid(CLSID_CGatewayProtocol), SafeNativeMethods.CLSCTX.CLSCTX_INPROC_SERVER, IntPtr.Zero, new Guid(IID_IClassFactory), out pClassFactory); if (hr >= 0 && pClassFactory != null) { qfeInstalled = true; } else { qfeInstalled = RegistryEntryExists(); } } finally { SafeNativeMethods.CoUninitialize(); } } if (!qfeInstalled) { throw new WsatAdminException(WsatAdminErrorCode.CANNOT_ENABLE_NETWORK_SUPPORT_WHEN_QFE_IS_NOT_INSTALLED, SR.GetString(SR.ErrorNoQFE)); } } static bool RegistryEntryExists() { bool regKeyExists = false; using (SafeRegistryKey hive = new SafeRegistryKey(new IntPtr((int)Microsoft.Win32.RegistryHive.LocalMachine), false)) { SafeRegistryKey regKey = null; int ret = SafeNativeMethods.RegOpenKeyEx( hive, RegKeyClassIdRoot + CLSID_CGatewayProtocol, 0, SafeNativeMethods.KEY_WOW64_64KEY | SafeNativeMethods.KEY_QUERY_VALUE, out regKey); if (ret == 0 && regKey != null && !regKey.IsInvalid) { regKeyExists = true; regKey.Close(); } } return regKeyExists; } } static partial class SafeNativeMethods { internal const uint COINIT_APARTMENTTHREADED = 0x2; internal const string Ole32 = "ole32.dll"; [DllImport(Ole32)] internal static extern int CoInitializeEx( [In] IntPtr pvReserved, [In] uint dwCoInit); [DllImport(Ole32, CharSet = CharSet.Unicode)] internal static extern int CoGetClassObject( [In, MarshalAs(UnmanagedType.LPStruct)] Guid rclsid, [In] CLSCTX dwClsContext, [In ] IntPtr pServerInfo, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [Out] out SafeIUnknown ppv); [DllImport(Ole32)] internal static extern void CoUninitialize(); [Flags] internal enum CLSCTX : uint { CLSCTX_INPROC_SERVER = 0x1, CLSCTX_INPROC_HANDLER = 0x2, CLSCTX_LOCAL_SERVER = 0x4, CLSCTX_INPROC_SERVER16 = 0x8, CLSCTX_REMOTE_SERVER = 0x10, CLSCTX_INPROC_HANDLER16 = 0x20, CLSCTX_RESERVED1 = 0x40, CLSCTX_RESERVED2 = 0x80, CLSCTX_RESERVED3 = 0x100, CLSCTX_RESERVED4 = 0x200, CLSCTX_NO_CODE_DOWNLOAD = 0x400, CLSCTX_RESERVED5 = 0x800, CLSCTX_NO_CUSTOM_MARSHAL = 0x1000, CLSCTX_ENABLE_CODE_DOWNLOAD = 0x2000, CLSCTX_NO_FAILURE_LOG = 0x4000, CLSCTX_DISABLE_AAA = 0x8000, CLSCTX_ENABLE_AAA = 0x10000, CLSCTX_FROM_DEFAULT_CONTEXT = 0x20000, CLSCTX_INPROC = CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER, CLSCTX_SERVER = CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER | CLSCTX_REMOTE_SERVER, CLSCTX_ALL = CLSCTX_SERVER | CLSCTX_INPROC_HANDLER } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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