René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"PowerShell Core cannot start a job using Windows PowerShell","articleBody":"When `-PSVersion` is specified, it should be respected. And all supported PSVersions (2.0 to 5.1) should be supported when the corresopnding version of Windows PowerShell is available.\r\n\r\nNote that, when `-PSEdition 2.0` is specified, `Start-Job` checks if PSv2 is installed using the method `RemotingCommandUtil.CheckIfPowerShellVersionIsInstalled` which will blindly throw exception in PSCore (see code below). If we want to support `-PSEdition 2.0`, then the `#if CORECLR` section of the method body should be removed.\r\n\r\n```c#\r\n        internal static void CheckIfPowerShellVersionIsInstalled(Version version)\r\n        {\r\n            // Check if PowerShell 2.0 is installed\r\n            if (version != null \u0026\u0026 version.Major == 2)\r\n            {\r\n#if CORECLR\r\n                // PowerShell 2.0 is not available for CoreCLR\r\n                throw new ArgumentException(\r\n                    PSRemotingErrorInvariants.FormatResourceString(\r\n                        RemotingErrorIdStrings.PowerShellNotInstalled,\r\n                        version, \"PSVersion\"));\r\n#else\r\n                // Because of app-compat issues, in Win8, we will have PS 2.0 installed by default but not .NET 2.0\r\n                // In such a case, it is not enough if we check just PowerShell registry keys. We also need to check if .NET 2.0 is installed.\r\n                ...\r\n```\r\n\r\nSteps to reproduce\r\n------------------\r\n\r\n```powershell\r\nPS:1\u003e $job = Start-Job { $PSVersionTable.PSVersion } -PSVersion 5.1\r\nPS:2\u003e Receive-Job $job\r\n```\r\n\r\nExpected behavior\r\n-----------------\r\n\r\n```none\r\nPS:2\u003e Receive-Job $job\r\n\r\nMajor  Minor  Build  Revision\r\n-----  -----  -----  --------\r\n5      1      17134  81\r\n```\r\n\r\nActual behavior\r\n---------------\r\n\r\n```none\r\nPS:2\u003e Receive-Job $job\r\n\r\nMajor  Minor  Patch  PreReleas BuildLabel\r\n                     eLabel\r\n-----  -----  -----  --------- ----------\r\n6      0      1\r\n```\r\n\r\nEnvironment data\r\n----------------\r\n\r\n\u003c!-- provide the output of $PSVersionTable --\u003e\r\n\r\n```powershell\r\n\u003e $PSVersionTable\r\n\r\nName                           Value\r\n----                           -----\r\nPSVersion                      6.0.1\r\nPSEdition                      Core\r\nGitCommitId                    v6.0.1\r\nOS                             Microsoft Windows 10.0.17134\r\nPlatform                       Win32NT\r\nPSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}\r\nPSRemotingProtocolVersion      2.3\r\nSerializationVersion           1.1.0.1\r\nWSManStackVersion              3.0\r\n```\r\n","author":{"url":"https://github.com/daxian-dbw","@type":"Person","name":"daxian-dbw"},"datePublished":"2018-06-13T20:24:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/7059/PowerShell/issues/7059"}