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# Phase 1 — Solution & Shared Library (RDPWrap.Common)
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Create src-csharp/ solution with four projects: RDPWrap.Common (class lib), RDPWInst (console), RDPConf (WinForms), RDPCheck (WinForms)
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NativeMethods.cs — all P/Invoke declarations: kernel32 (GetNativeSystemInfo, LoadLibraryEx, FindResource, Wow64Disable/RevertFsRedirection, CreateProcess, OpenProcess, TerminateProcess, CreateToolhelp32Snapshot, Thread32First/Next, OpenThread, SuspendThread/ResumeThread), advapi32 (all SCM + ACL + token functions), winsta.dll (WinStationEnumerateW, WinStationFreeMemory)
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RegistryHelper.cs — HKLM read/write helpers with KEY_WOW64_64KEY flag support for 64-bit hosts
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ServiceHelper.cs — OpenSCManager/OpenService/QueryServiceConfig/QueryServiceStatusEx/ChangeServiceConfig/StartService wrappers (or wrap System.ServiceProcess.ServiceController where sufficient)
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ArchHelper.cs — GetNativeSystemInfo-based arch detection + Wow64DisableWow64FsRedirection/RevertWow64FsRedirection helpers
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FileVersionHelper.cs — GetFileVersion via LoadLibraryEx + manual VS_VERSIONINFO parsing (or FileVersionInfo.GetVersionInfo())
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ProcessHelper.cs — ExecWait (hidden Process.Start + WaitForExit), KillProcess
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HttpHelper.cs — replace WinInet with HttpClient: DownloadStringAsync (for INI content), DownloadFileAsync (for binary assets)
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ResourceHelper.cs — Assembly.GetManifestResourceStream → extract to file path
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IniHelper.cs — INIHasSection(path, section) string search
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SecurityHelper.cs — ConvertStringSidToSid + SetEntriesInAcl + SetNamedSecurityInfo (grant SID full access), AddPrivilege (token privilege adjustment)
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# Phase 2 — RDPWInst (Console Installer)
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Argument parsing + main dispatch (/install, /uninstall, /update, /wraponly)
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CheckInstall() — verify TermService ImagePath (svchost) and ServiceDll (not third-party)
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CheckTermsrvProcess() — EnumServicesStatusEx loop to find TermService PID + co-hosted services; auto-start if PID=0
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CheckTermsrvDependencies() — ensure CertPropSvc and SessionEnv are not disabled
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CheckTermsrvVersion() — read termsrv.dll version, classify as unsupported / partial / full using built-in INI
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TSConfigRegistry(enable) — write fDenyTSConnections, EnableConcurrentSessions, AllowMultipleTSSessions, AllowRemoteRPC, EnableLinkedConnections
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ExtractFiles() — pull rdpw32/rdpw64, rdpclip, rfxvmt, config out of embedded resources; create install dir; set ACLs for S-1-5-18 and S-1-5-6
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SetWrapperDll() / ResetServiceDll() — write/restore ServiceDll registry value (REG_EXPAND_SZ); reg.exe workaround for Vista
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DeleteFiles() — remove rdpwrap.ini, rdpwrap.dll, install folder on uninstall
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GitINIFile() / DownloadFileToDisk() — HttpClient-based downloads from releases/latest/download/rdpwrap.ini
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TryAutoGenerateOffsets() — download RDPWrapOffsetFinder_x64/x86.exe + Zydis_x64/x86.dll, run via cmd.exe /c "... >> rdpwrap.ini", clean up temp files
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AddPrivilege() / KillProcess() / full install/uninstall/update orchestration wiring
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Embed binary resources (rdpw32.dll, rdpw64.dll, rdpclip*, rfxvmt*, rdpwrap.ini) into the .csproj as EmbeddedResource
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Add UAC app manifest: requestedExecutionLevel = requireAdministrator
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# Phase 3 — RDPConf (WinForms Configuration GUI)
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MainForm layout — CheckBox (AllowTSConnections, SingleSessionPerUser, HideUsers, CustomPrg), two GroupBox+RadioButton clusters (NLA ×3, Shadow ×5), NumericUpDown for port, status Label pairs for Service/Listener/Wrapper/TS version/Wrapper version, OK/Cancel/Apply/License Button, System.Windows.Forms.Timer
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ReadSettings() — pull all values from HKLM\...\Terminal Server and RDP-Tcp registry keys into controls
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WriteSettings() — write all controls back to registry; on port change call netsh advfirewall firewall set rule name="Remote Desktop" new localport=…
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TimerTimer() — periodic refresh of all status labels (wrapper installed?, service state, listener active, file versions, support level)
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IsWrapperInstalled() / GetTermSrvState() (via ServiceController) / IsListenerWorking() (via WinStationEnumerateW)
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CheckSupport() — load rdpwrap.ini from install path, search for [major.minor.release.build] section
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LicenseForm — TextBox (multiline, readonly) populated from embedded LICENSE resource + Accept/Decline buttons
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FormCreate — arch detection, Wow64DisableWow64FsRedirection; FormClosed — RevertWow64FsRedirection; unsaved-changes guard on close
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UAC manifest + app.manifest (requireAdministrator)
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# Phase 4 — RDPCheck (WinForms RDP Tester)
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Add COM interop reference for mstscax.dll (AxMSTSCLib) — either tlbimp-generated assembly or NuGet Microsoft.Rdp.Client
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MainForm layout — AxMsRdpClient2 ActiveX host filling the form
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FormLoad() — read then zero-out SecurityLayer/UserAuthentication in registry, read PortNumber, Sleep(1000), call .Connect()
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OnDisconnected() — full 50-entry reason-code → English string table (matching the Delphi source exactly), MessageBox for codes >2, restore SecurityLayer/UserAuthentication, Application.Exit()
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UAC manifest (requireAdministrator — needed for HKLM registry writes)
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# Phase 5 — Build & CI
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Directory.Build.props — shared <TargetFramework>net481</TargetFramework> (or net8.0-windows), <Platforms>x86;x64</Platforms>, <Nullable>enable</Nullable>, <ImplicitUsings>enable</ImplicitUsings>
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Update GitHub Actions workflows — replace Delphi compiler steps with dotnet build / dotnet publish -r win-x64 -r win-x86
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Remove Delphi compiler steps, Delphi CI caching, .dproj/.dfm artifact handling from all workflows
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Code-sign configuration — signtool.exe step in release workflow for all four output binaries
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Update README.md with new build prerequisites (.NET SDK), build commands, and note that Delphi is no longer required |
