1 // Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information. 2 3 using System; 4 using Microsoft.Win32; 5 6 namespace Microsoft.TestCommon 7 { 8 public static class RuntimeEnvironment 9 { 10 private const string NetFx40FullSubKey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full"; 11 private const string Version = "Version"; 12 RuntimeEnvironment()13 static RuntimeEnvironment() 14 { 15 object runtimeVersion = Registry.LocalMachine.OpenSubKey(RuntimeEnvironment.NetFx40FullSubKey).GetValue(RuntimeEnvironment.Version); 16 string versionFor40String = runtimeVersion as string; 17 if (versionFor40String != null) 18 { 19 VersionFor40 = new Version(versionFor40String); 20 } 21 } 22 23 private static Version VersionFor40; 24 25 public static bool IsVersion45Installed 26 { 27 get 28 { 29 return VersionFor40.Major > 4 || (VersionFor40.Major == 4 && VersionFor40.Minor >= 5); 30 } 31 } 32 } 33 } 34