├── .gitignore ├── DemoModernService ├── DemoModernService.cs ├── DemoModernService.csproj ├── Program.cs ├── createService.cmd └── deleteService.cmd ├── DemoService ├── App.config ├── DemoService.Designer.cs ├── DemoService.cs ├── DemoService.csproj ├── Program.cs ├── ProjectInstaller.Designer.cs ├── ProjectInstaller.cs ├── ProjectInstaller.resx ├── Properties │ └── AssemblyInfo.cs ├── createService.bat └── deleteService.bat ├── LICENSE ├── ProcessExtensions ├── ProcessExtensions.cs └── ProcessExtensions.csproj ├── README.md └── solution.sln /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Ww][Ii][Nn]32/ 27 | [Aa][Rr][Mm]/ 28 | [Aa][Rr][Mm]64/ 29 | bld/ 30 | [Bb]in/ 31 | [Oo]bj/ 32 | [Ll]og/ 33 | [Ll]ogs/ 34 | 35 | # Visual Studio 2015/2017 cache/options directory 36 | .vs/ 37 | # Uncomment if you have tasks that create the project's static files in wwwroot 38 | #wwwroot/ 39 | 40 | # Visual Studio 2017 auto generated files 41 | Generated\ Files/ 42 | 43 | # MSTest test Results 44 | [Tt]est[Rr]esult*/ 45 | [Bb]uild[Ll]og.* 46 | 47 | # NUnit 48 | *.VisualState.xml 49 | TestResult.xml 50 | nunit-*.xml 51 | 52 | # Build Results of an ATL Project 53 | [Dd]ebugPS/ 54 | [Rr]eleasePS/ 55 | dlldata.c 56 | 57 | # Benchmark Results 58 | BenchmarkDotNet.Artifacts/ 59 | 60 | # .NET Core 61 | project.lock.json 62 | project.fragment.lock.json 63 | artifacts/ 64 | 65 | # ASP.NET Scaffolding 66 | ScaffoldingReadMe.txt 67 | 68 | # StyleCop 69 | StyleCopReport.xml 70 | 71 | # Files built by Visual Studio 72 | *_i.c 73 | *_p.c 74 | *_h.h 75 | *.ilk 76 | *.meta 77 | *.obj 78 | *.iobj 79 | *.pch 80 | *.pdb 81 | *.ipdb 82 | *.pgc 83 | *.pgd 84 | *.rsp 85 | *.sbr 86 | *.tlb 87 | *.tli 88 | *.tlh 89 | *.tmp 90 | *.tmp_proj 91 | *_wpftmp.csproj 92 | *.log 93 | *.tlog 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*.json 147 | coverage*.xml 148 | coverage*.info 149 | 150 | # Visual Studio code coverage results 151 | *.coverage 152 | *.coveragexml 153 | 154 | # NCrunch 155 | _NCrunch_* 156 | .*crunch*.local.xml 157 | nCrunchTemp_* 158 | 159 | # MightyMoose 160 | *.mm.* 161 | AutoTest.Net/ 162 | 163 | # Web workbench (sass) 164 | .sass-cache/ 165 | 166 | # Installshield output folder 167 | [Ee]xpress/ 168 | 169 | # DocProject is a documentation generator add-in 170 | DocProject/buildhelp/ 171 | DocProject/Help/*.HxT 172 | DocProject/Help/*.HxC 173 | DocProject/Help/*.hhc 174 | DocProject/Help/*.hhk 175 | DocProject/Help/*.hhp 176 | DocProject/Help/Html2 177 | DocProject/Help/html 178 | 179 | # Click-Once directory 180 | publish/ 181 | 182 | # Publish Web Output 183 | *.[Pp]ublish.xml 184 | *.azurePubxml 185 | # Note: Comment the next line if you want to checkin your web deploy settings, 186 | # but database connection strings (with potential passwords) will be unencrypted 187 | *.pubxml 188 | *.publishproj 189 | 190 | # Microsoft Azure Web App publish settings. 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3 | using murrayju.ProcessExtensions; 4 | 5 | namespace DemoModernService; 6 | 7 | internal class DemoModernService : BackgroundService 8 | { 9 | protected override async Task ExecuteAsync(CancellationToken stoppingToken) 10 | { 11 | ProcessExtensions.StartProcessAsCurrentUser("calc.exe"); 12 | } 13 | } -------------------------------------------------------------------------------- /DemoModernService/DemoModernService.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Exe 5 | net8.0 6 | enable 7 | enable 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | Always 21 | 22 | 23 | Always 24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /DemoModernService/Program.cs: -------------------------------------------------------------------------------- 1 |  2 | using Microsoft.Extensions.DependencyInjection; 3 | using Microsoft.Extensions.Hosting; 4 | 5 | namespace DemoModernService; 6 | 7 | internal class Program 8 | { 9 | static async Task Main(string[] args) 10 | { 11 | var host = Host.CreateDefaultBuilder(args) 12 | .UseWindowsService(opt => 13 | { 14 | opt.ServiceName = "DemoModernService"; 15 | }) 16 | .ConfigureServices(svc => 17 | { 18 | svc.AddHostedService(); 19 | }) 20 | .Build(); 21 | 22 | await host.RunAsync(); 23 | } 24 | } -------------------------------------------------------------------------------- /DemoModernService/createService.cmd: -------------------------------------------------------------------------------- 1 | @echo off 2 | @rem Intended to run from the same directory (e.g. bin); build should copy to bin. 3 | openfiles.exe 1>nul 2>&1 4 | if not %errorlevel% equ 0 goto :fail 5 | sc create "DemoModernService" binpath= "%~dp0DemoModernService.exe" displayname= "murrayju.ProcessExtensions Modern .NET Demo" 6 | sc start "DemoModernService" 7 | goto:eof 8 | :fail 9 | echo: 10 | echo Failed. Run as Administrator. 11 | echo: 12 | :eof 13 | -------------------------------------------------------------------------------- /DemoModernService/deleteService.cmd: -------------------------------------------------------------------------------- 1 | @echo off 2 | @rem Intended to run from the same directory (e.g. bin); build should copy to bin. 3 | openfiles.exe 1>nul 2>&1 4 | if not %errorlevel% equ 0 goto :fail 5 | sc stop "DemoModernService" 6 | sc delete "DemoModernService" 7 | goto:eof 8 | :fail 9 | echo: 10 | echo Failed. Run as Administrator. 11 | echo: 12 | :eof -------------------------------------------------------------------------------- /DemoService/App.config: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /DemoService/DemoService.Designer.cs: -------------------------------------------------------------------------------- 1 | namespace demo 2 | { 3 | partial class DemoService 4 | { 5 | /// 6 | /// Required designer variable. 7 | /// 8 | private System.ComponentModel.IContainer components = null; 9 | 10 | /// 11 | /// Clean up any resources being used. 12 | /// 13 | /// true if managed resources should be disposed; otherwise, false. 14 | protected override void Dispose(bool disposing) 15 | { 16 | if (disposing && (components != null)) 17 | { 18 | components.Dispose(); 19 | } 20 | base.Dispose(disposing); 21 | } 22 | 23 | #region Component Designer generated code 24 | 25 | /// 26 | /// Required method for Designer support - do not modify 27 | /// the contents of this method with the code editor. 28 | /// 29 | private void InitializeComponent() 30 | { 31 | components = new System.ComponentModel.Container(); 32 | this.ServiceName = "Service1"; 33 | } 34 | 35 | #endregion 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /DemoService/DemoService.cs: -------------------------------------------------------------------------------- 1 | using murrayju.ProcessExtensions; 2 | using System.ServiceProcess; 3 | 4 | namespace demo 5 | { 6 | public partial class DemoService : ServiceBase 7 | { 8 | public DemoService() 9 | { 10 | InitializeComponent(); 11 | } 12 | 13 | protected override void OnStart(string[] args) 14 | { 15 | ProcessExtensions.StartProcessAsCurrentUser("calc.exe"); 16 | } 17 | 18 | protected override void OnStop() 19 | { 20 | } 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /DemoService/DemoService.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE} 8 | Exe 9 | demo 10 | DemoService 11 | v4.8.1 12 | 512 13 | true 14 | true 15 | 16 | 17 | AnyCPU 18 | true 19 | full 20 | false 21 | bin\Debug\ 22 | DEBUG;TRACE 23 | prompt 24 | 4 25 | 26 | 27 | AnyCPU 28 | pdbonly 29 | true 30 | bin\Release\ 31 | TRACE 32 | prompt 33 | 4 34 | 35 | 36 | 37 | 38 | ..\..\..\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8.1\System.Configuration.Install.dll 39 | 40 | 41 | 42 | ..\..\..\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8.1\System.ServiceProcess.dll 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | Component 54 | 55 | 56 | 57 | 58 | Component 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | Always 67 | 68 | 69 | Always 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | {75ee3b51-5a96-473c-9e68-c36b728a6e2b} 78 | ProcessExtensions 79 | 80 | 81 | 82 | -------------------------------------------------------------------------------- /DemoService/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.ServiceProcess; 5 | using System.Text; 6 | using System.Threading.Tasks; 7 | 8 | namespace demo 9 | { 10 | static class Program 11 | { 12 | /// 13 | /// The main entry point for the application. 14 | /// 15 | static void Main() 16 | { 17 | ServiceBase[] ServicesToRun; 18 | ServicesToRun = new ServiceBase[] 19 | { 20 | new DemoService() 21 | }; 22 | ServiceBase.Run(ServicesToRun); 23 | } 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /DemoService/ProjectInstaller.Designer.cs: -------------------------------------------------------------------------------- 1 | namespace DemoService 2 | { 3 | partial class ProjectInstaller 4 | { 5 | /// 6 | /// Required designer variable. 7 | /// 8 | private System.ComponentModel.IContainer components = null; 9 | 10 | /// 11 | /// Clean up any resources being used. 12 | /// 13 | /// true if managed resources should be disposed; otherwise, false. 14 | protected override void Dispose(bool disposing) 15 | { 16 | if (disposing && (components != null)) 17 | { 18 | components.Dispose(); 19 | } 20 | base.Dispose(disposing); 21 | } 22 | 23 | #region Component Designer generated code 24 | 25 | /// 26 | /// Required method for Designer support - do not modify 27 | /// the contents of this method with the code editor. 28 | /// 29 | private void InitializeComponent() 30 | { 31 | this.serviceProcessInstaller1 = new System.ServiceProcess.ServiceProcessInstaller(); 32 | this.serviceInstaller1 = new System.ServiceProcess.ServiceInstaller(); 33 | // 34 | // serviceProcessInstaller1 35 | // 36 | this.serviceProcessInstaller1.Account = System.ServiceProcess.ServiceAccount.LocalSystem; 37 | this.serviceProcessInstaller1.Password = null; 38 | this.serviceProcessInstaller1.Username = null; 39 | // 40 | // serviceInstaller1 41 | // 42 | this.serviceInstaller1.Description = "An example service"; 43 | this.serviceInstaller1.DisplayName = "DemoService"; 44 | this.serviceInstaller1.ServiceName = "DemoService"; 45 | this.serviceInstaller1.StartType = System.ServiceProcess.ServiceStartMode.Automatic; 46 | // 47 | // ProjectInstaller 48 | // 49 | this.Installers.AddRange(new System.Configuration.Install.Installer[] { 50 | this.serviceProcessInstaller1, 51 | this.serviceInstaller1}); 52 | 53 | } 54 | 55 | #endregion 56 | 57 | private System.ServiceProcess.ServiceProcessInstaller serviceProcessInstaller1; 58 | private System.ServiceProcess.ServiceInstaller serviceInstaller1; 59 | } 60 | } -------------------------------------------------------------------------------- /DemoService/ProjectInstaller.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections; 3 | using System.Collections.Generic; 4 | using System.ComponentModel; 5 | using System.Configuration.Install; 6 | using System.Linq; 7 | using System.Threading.Tasks; 8 | 9 | namespace DemoService 10 | { 11 | [RunInstaller(true)] 12 | public partial class ProjectInstaller : System.Configuration.Install.Installer 13 | { 14 | public ProjectInstaller() 15 | { 16 | InitializeComponent(); 17 | } 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /DemoService/ProjectInstaller.resx: -------------------------------------------------------------------------------- 1 |  2 | 3 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | text/microsoft-resx 110 | 111 | 112 | 2.0 113 | 114 | 115 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | 118 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 119 | 120 | 121 | 17, 17 122 | 123 | 124 | 196, 17 125 | 126 | 127 | False 128 | 129 | -------------------------------------------------------------------------------- /DemoService/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("DemoService")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("DemoService")] 13 | [assembly: AssemblyCopyright("Copyright © 2023")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("68ea76fb-33da-4a20-b54a-7cbf1a3edbbe")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /DemoService/createService.bat: -------------------------------------------------------------------------------- 1 | @echo off 2 | @rem Intended to run from the same directory (e.g. bin); build should copy to bin. 3 | %windir%\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe .\DemoService.exe 4 | sc start DemoService 5 | -------------------------------------------------------------------------------- /DemoService/deleteService.bat: -------------------------------------------------------------------------------- 1 | @echo off 2 | @rem Intended to run from the same directory (e.g. bin); build should copy to bin. 3 | sc stop DemoService 4 | %windir%\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe /u .\DemoService.exe 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Justin Murray 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. -------------------------------------------------------------------------------- /ProcessExtensions/ProcessExtensions.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Runtime.InteropServices; 4 | 5 | namespace murrayju.ProcessExtensions 6 | { 7 | public class ProcessCreationException : Exception 8 | { 9 | public ProcessCreationException(string msg) : base(msg) { } 10 | } 11 | 12 | public static class ProcessExtensions 13 | { 14 | #region Win32 Constants 15 | 16 | private const int CREATE_UNICODE_ENVIRONMENT = 0x00000400; 17 | private const int CREATE_NO_WINDOW = 0x08000000; 18 | 19 | private const int CREATE_NEW_CONSOLE = 0x00000010; 20 | 21 | private const uint INVALID_SESSION_ID = 0xFFFFFFFF; 22 | private static readonly IntPtr WTS_CURRENT_SERVER_HANDLE = IntPtr.Zero; 23 | private const int STARTF_USESHOWWINDOW = 0x00000001; 24 | 25 | #endregion 26 | 27 | #region DllImports 28 | 29 | [DllImport("advapi32.dll", EntryPoint = "CreateProcessAsUser", SetLastError = true, CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)] 30 | private static extern bool CreateProcessAsUser( 31 | IntPtr hToken, 32 | String lpApplicationName, 33 | String lpCommandLine, 34 | IntPtr lpProcessAttributes, 35 | IntPtr lpThreadAttributes, 36 | bool bInheritHandle, 37 | uint dwCreationFlags, 38 | IntPtr lpEnvironment, 39 | String lpCurrentDirectory, 40 | ref STARTUPINFO lpStartupInfo, 41 | out PROCESS_INFORMATION lpProcessInformation); 42 | 43 | [DllImport("advapi32.dll", EntryPoint = "DuplicateTokenEx")] 44 | private static extern bool DuplicateTokenEx( 45 | IntPtr ExistingTokenHandle, 46 | uint dwDesiredAccess, 47 | IntPtr lpThreadAttributes, 48 | int TokenType, 49 | int ImpersonationLevel, 50 | ref IntPtr DuplicateTokenHandle); 51 | 52 | [DllImport("userenv.dll", SetLastError = true)] 53 | private static extern bool CreateEnvironmentBlock(ref IntPtr lpEnvironment, IntPtr hToken, bool bInherit); 54 | 55 | [DllImport("userenv.dll", SetLastError = true)] 56 | [return: MarshalAs(UnmanagedType.Bool)] 57 | private static extern bool DestroyEnvironmentBlock(IntPtr lpEnvironment); 58 | 59 | [DllImport("kernel32.dll", SetLastError = true)] 60 | private static extern bool CloseHandle(IntPtr hSnapshot); 61 | 62 | [DllImport("kernel32.dll")] 63 | private static extern uint WTSGetActiveConsoleSessionId(); 64 | 65 | [DllImport("Wtsapi32.dll")] 66 | private static extern uint WTSQueryUserToken(uint SessionId, ref IntPtr phToken); 67 | 68 | [DllImport("wtsapi32.dll", SetLastError = true)] 69 | private static extern int WTSEnumerateSessions( 70 | IntPtr hServer, 71 | int Reserved, 72 | int Version, 73 | ref IntPtr ppSessionInfo, 74 | ref int pCount); 75 | 76 | [DllImport("Wtsapi32.dll")] 77 | private static extern void WTSFreeMemory(IntPtr ppSessionInfo); 78 | 79 | #endregion 80 | 81 | #region Win32 Structs 82 | 83 | private enum SW 84 | { 85 | SW_HIDE = 0, 86 | SW_SHOWNORMAL = 1, 87 | SW_NORMAL = 1, 88 | SW_SHOWMINIMIZED = 2, 89 | SW_SHOWMAXIMIZED = 3, 90 | SW_MAXIMIZE = 3, 91 | SW_SHOWNOACTIVATE = 4, 92 | SW_SHOW = 5, 93 | SW_MINIMIZE = 6, 94 | SW_SHOWMINNOACTIVE = 7, 95 | SW_SHOWNA = 8, 96 | SW_RESTORE = 9, 97 | SW_SHOWDEFAULT = 10, 98 | SW_MAX = 10 99 | } 100 | 101 | private enum WTS_CONNECTSTATE_CLASS 102 | { 103 | WTSActive, 104 | WTSConnected, 105 | WTSConnectQuery, 106 | WTSShadow, 107 | WTSDisconnected, 108 | WTSIdle, 109 | WTSListen, 110 | WTSReset, 111 | WTSDown, 112 | WTSInit 113 | } 114 | 115 | [StructLayout(LayoutKind.Sequential)] 116 | private struct PROCESS_INFORMATION 117 | { 118 | public IntPtr hProcess; 119 | public IntPtr hThread; 120 | public uint dwProcessId; 121 | public uint dwThreadId; 122 | } 123 | 124 | private enum SECURITY_IMPERSONATION_LEVEL 125 | { 126 | SecurityAnonymous = 0, 127 | SecurityIdentification = 1, 128 | SecurityImpersonation = 2, 129 | SecurityDelegation = 3, 130 | } 131 | 132 | [StructLayout(LayoutKind.Sequential)] 133 | private struct STARTUPINFO 134 | { 135 | public int cb; 136 | public String lpReserved; 137 | public String lpDesktop; 138 | public String lpTitle; 139 | public uint dwX; 140 | public uint dwY; 141 | public uint dwXSize; 142 | public uint dwYSize; 143 | public uint dwXCountChars; 144 | public uint dwYCountChars; 145 | public uint dwFillAttribute; 146 | public uint dwFlags; 147 | public short wShowWindow; 148 | public short cbReserved2; 149 | public IntPtr lpReserved2; 150 | public IntPtr hStdInput; 151 | public IntPtr hStdOutput; 152 | public IntPtr hStdError; 153 | } 154 | 155 | private enum TOKEN_TYPE 156 | { 157 | TokenPrimary = 1, 158 | TokenImpersonation = 2 159 | } 160 | 161 | [StructLayout(LayoutKind.Sequential)] 162 | private struct WTS_SESSION_INFO 163 | { 164 | public readonly UInt32 SessionID; 165 | 166 | [MarshalAs(UnmanagedType.LPStr)] 167 | public readonly String pWinStationName; 168 | 169 | public readonly WTS_CONNECTSTATE_CLASS State; 170 | } 171 | 172 | #endregion 173 | 174 | // Gets the user token from the currently active session 175 | private static bool GetSessionUserToken(ref IntPtr phUserToken) 176 | { 177 | var bResult = false; 178 | var hImpersonationToken = IntPtr.Zero; 179 | var activeSessionId = INVALID_SESSION_ID; 180 | var pSessionInfo = IntPtr.Zero; 181 | var sessionCount = 0; 182 | 183 | // Get a handle to the user access token for the current active session. 184 | if (WTSEnumerateSessions(WTS_CURRENT_SERVER_HANDLE, 0, 1, ref pSessionInfo, ref sessionCount) != 0) 185 | { 186 | var arrayElementSize = Marshal.SizeOf(typeof(WTS_SESSION_INFO)); 187 | var current = pSessionInfo; 188 | 189 | for (var i = 0; i < sessionCount; i++) 190 | { 191 | var si = (WTS_SESSION_INFO)Marshal.PtrToStructure((IntPtr)current, typeof(WTS_SESSION_INFO)); 192 | current += arrayElementSize; 193 | 194 | if (si.State == WTS_CONNECTSTATE_CLASS.WTSActive) 195 | { 196 | activeSessionId = si.SessionID; 197 | } 198 | } 199 | 200 | WTSFreeMemory(pSessionInfo); 201 | } 202 | 203 | // If enumerating did not work, fall back to the old method 204 | if (activeSessionId == INVALID_SESSION_ID) 205 | { 206 | activeSessionId = WTSGetActiveConsoleSessionId(); 207 | } 208 | 209 | if (WTSQueryUserToken(activeSessionId, ref hImpersonationToken) != 0) 210 | { 211 | // Convert the impersonation token to a primary token 212 | bResult = DuplicateTokenEx(hImpersonationToken, 0, IntPtr.Zero, 213 | (int)SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, (int)TOKEN_TYPE.TokenPrimary, 214 | ref phUserToken); 215 | 216 | CloseHandle(hImpersonationToken); 217 | } 218 | 219 | return bResult; 220 | } 221 | 222 | public static bool StartProcessAsCurrentUser(string appPath, string cmdLine = null, string workDir = null, bool visible = true) 223 | { 224 | var hUserToken = IntPtr.Zero; 225 | var startInfo = new STARTUPINFO(); 226 | var procInfo = new PROCESS_INFORMATION(); 227 | var pEnv = IntPtr.Zero; 228 | int iResultOfCreateProcessAsUser; 229 | 230 | startInfo.cb = Marshal.SizeOf(typeof(STARTUPINFO)); 231 | 232 | try 233 | { 234 | if (!GetSessionUserToken(ref hUserToken)) 235 | { 236 | throw new ProcessCreationException("StartProcessAsCurrentUser: GetSessionUserToken failed."); 237 | } 238 | 239 | uint dwCreationFlags = CREATE_UNICODE_ENVIRONMENT | (uint)(visible ? CREATE_NEW_CONSOLE : CREATE_NO_WINDOW); 240 | startInfo.dwFlags = STARTF_USESHOWWINDOW; 241 | startInfo.wShowWindow = (short)(visible ? SW.SW_SHOW : SW.SW_HIDE); 242 | startInfo.lpDesktop = "winsta0\\default"; 243 | 244 | if (!CreateEnvironmentBlock(ref pEnv, hUserToken, false)) 245 | { 246 | throw new ProcessCreationException("StartProcessAsCurrentUser: CreateEnvironmentBlock failed."); 247 | } 248 | 249 | if (workDir != null) 250 | { 251 | Directory.SetCurrentDirectory(workDir); 252 | } 253 | 254 | if (!CreateProcessAsUser(hUserToken, 255 | appPath, // Application Name 256 | cmdLine, // Command Line 257 | IntPtr.Zero, 258 | IntPtr.Zero, 259 | false, 260 | dwCreationFlags, 261 | pEnv, 262 | workDir, // Working directory 263 | ref startInfo, 264 | out procInfo)) 265 | { 266 | iResultOfCreateProcessAsUser = Marshal.GetLastWin32Error(); 267 | throw new ProcessCreationException("StartProcessAsCurrentUser: CreateProcessAsUser failed. Error Code -" + iResultOfCreateProcessAsUser); 268 | } 269 | 270 | iResultOfCreateProcessAsUser = Marshal.GetLastWin32Error(); 271 | } 272 | finally 273 | { 274 | CloseHandle(hUserToken); 275 | if (pEnv != IntPtr.Zero) 276 | { 277 | DestroyEnvironmentBlock(pEnv); 278 | } 279 | CloseHandle(procInfo.hThread); 280 | CloseHandle(procInfo.hProcess); 281 | } 282 | 283 | return true; 284 | } 285 | 286 | } 287 | } 288 | -------------------------------------------------------------------------------- /ProcessExtensions/ProcessExtensions.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | netstandard2.0 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # CreateProcessAsUser 2 | 3 | ![Maintainers Wanted](https://img.shields.io/badge/maintainers-wanted-brightgreen.svg) 4 | 5 | --- 6 | 7 | ### 🚧 Looking for maintainers 🚧 8 | > :loudspeaker: **We are actively seeking collaborators to help maintain and improve this project!** 9 | 10 | This library was created 10+ years ago when I was actively working on Windows services. I have since moved on to other things, and I'm not in a position to easily maintain this project, which is still actively used by the community. If you are interested in helping, please reach out! 11 | 12 | --- 13 | 14 | This uses the Win32 apis to: 15 | 16 | 1. Find the currently active user session 17 | 2. Spawn a new process in that session 18 | 19 | This allows a process running in a different session (such as a windows service) to start a process with a graphical user interface that the user must see. 20 | 21 | Note that the process must have the appropriate (admin) privileges for this to work correctly. For [WTSQueryUserToken](https://github.com/murrayju/CreateProcessAsUser/blob/0381db2e8fb36f48794c073e87f773f7ca1ae039/ProcessExtensions/ProcessExtensions.cs#L197) you will need the __SE_TCB_NAME__ privilege, which is typically only held by Services running under the LocalSystem account ( [SO Link](https://stackoverflow.com/a/1289126/1872399) ). 22 | 23 | ## Usage 24 | ```C# 25 | using murrayju.ProcessExtensions; 26 | // ... 27 | ProcessExtensions.StartProcessAsCurrentUser("calc.exe"); 28 | ``` 29 | 30 | ### Parameters 31 | The second argument is used to pass the command line arguments as a string. Depending on the target application, `argv[0]` might be expected to be the executable name, or it might be the first parameter. See [this stack overflow answer](https://stackoverflow.com/a/14001282) for details. When in doubt, try it both ways. 32 | 33 | ## Demo Projects 34 | The `DemoService` project uses .NET Framework 4.8. Building the demo will copy the batch files to the build target. 35 | 36 | Similarly, the `DemoModernService` project uses .NET 8.0, and a build will copy the batch files to the build target. 37 | 38 | For either version, CD to the bin directory and run `createService` to install and start the service. It will launch `calc.exe` as soon as it starts. After that, run `deleteService` to stop and uninstall the service. 39 | 40 | -------------------------------------------------------------------------------- /solution.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.8.34330.188 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DemoService", "DemoService\DemoService.csproj", "{68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE}" 7 | EndProject 8 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DemoModernService", "DemoModernService\DemoModernService.csproj", "{E9053B19-2C9F-4760-950D-FB33711C77D9}" 9 | EndProject 10 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ProcessExtensions", "ProcessExtensions\ProcessExtensions.csproj", "{75EE3B51-5A96-473C-9E68-C36B728A6E2B}" 11 | EndProject 12 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{226E4595-B7A9-400C-9FF2-FE0DACFA4BEC}" 13 | ProjectSection(SolutionItems) = preProject 14 | README.md = README.md 15 | EndProjectSection 16 | EndProject 17 | Global 18 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 19 | Debug|Any CPU = Debug|Any CPU 20 | Release|Any CPU = Release|Any CPU 21 | EndGlobalSection 22 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 23 | {68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 24 | {68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE}.Debug|Any CPU.Build.0 = Debug|Any CPU 25 | {68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE}.Release|Any CPU.ActiveCfg = Release|Any CPU 26 | {68EA76FB-33DA-4A20-B54A-7CBF1A3EDBBE}.Release|Any CPU.Build.0 = Release|Any CPU 27 | {E9053B19-2C9F-4760-950D-FB33711C77D9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 28 | {E9053B19-2C9F-4760-950D-FB33711C77D9}.Debug|Any CPU.Build.0 = Debug|Any CPU 29 | {E9053B19-2C9F-4760-950D-FB33711C77D9}.Release|Any CPU.ActiveCfg = Release|Any CPU 30 | {E9053B19-2C9F-4760-950D-FB33711C77D9}.Release|Any CPU.Build.0 = Release|Any CPU 31 | {75EE3B51-5A96-473C-9E68-C36B728A6E2B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 32 | {75EE3B51-5A96-473C-9E68-C36B728A6E2B}.Debug|Any CPU.Build.0 = Debug|Any CPU 33 | {75EE3B51-5A96-473C-9E68-C36B728A6E2B}.Release|Any CPU.ActiveCfg = Release|Any CPU 34 | {75EE3B51-5A96-473C-9E68-C36B728A6E2B}.Release|Any CPU.Build.0 = Release|Any CPU 35 | EndGlobalSection 36 | GlobalSection(SolutionProperties) = preSolution 37 | HideSolutionNode = FALSE 38 | EndGlobalSection 39 | GlobalSection(ExtensibilityGlobals) = postSolution 40 | SolutionGuid = {559520CD-416C-401B-9B7D-3690FF2D73FD} 41 | EndGlobalSection 42 | EndGlobal 43 | --------------------------------------------------------------------------------