Wrong _MSC_VER

Reproduce the report with the supplied c_cpp_properties.json, compilerPath, VS 2022 toolchain, and main.cpp, then compare the extension's displayed _MSC_VER with the compiler's expected value. Use the C/C++ diagnostics log to trace compiler-default detection; done means the VS 2022 configuration reports 1944 rather than 1951.

Environment

• OS and Version: Windows 10 22H2
• VS Code Version: 1.133.0
• C/C++ Extension Version: 1.32.2

Bug Summary and Steps to Reproduce

Bug Summary: _MSC_VER displayed as 1951 when using VS2022, expected value: 1944.

Configuration and Logs

- c_cpp_properties.json

{
    "configurations": [
        {
            "name": "VS 2022",
            "compilerPath": "C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.44.35207\\bin\\Hostx64\\x64\\cl.exe",
            "intelliSenseMode": "windows-msvc-x64"
        }
    ],
    "version": 4
}


- C/C++: Log Diagnostics

-------- Diagnostics - 8/17/2026, 12:40:56 AM
Version: 1.32.2
Current Configuration:
{
    "name": "VS 2022",
    "compilerPath": "C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.44.35207\\bin\\Hostx64\\x64\\cl.exe",
    "intelliSenseMode": "windows-msvc-x64",
    "compilerPathIsExplicit": true,
    "cStandardIsExplicit": false,
    "cppStandardIsExplicit": false,
    "intelliSenseModeIsExplicit": true,
    "recursiveIncludesReduceIsExplicit": false,
    "recursiveIncludesPriorityIsExplicit": false,
    "recursiveIncludesOrderIsExplicit": false,
    "compilerPathInCppPropertiesJson": "C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.44.35207\\bin\\Hostx64\\x64\\cl.exe",
    "mergeConfigurations": false,
    "recursiveIncludes": {},
    "browse": {
        "limitSymbolsToIncludedHeaders": true
    }
}
Modified Settings:
{
    "C_Cpp.loggingLevel": "Debug"
}
Additional Tracked Settings:
{
    "editorTabSize": 4,
    "editorInsertSpaces": true,
    "editorAutoClosingBrackets": "languageDefined",
    "filesEncoding": "utf8",
    "filesAssociations": {},
    "filesExclude": {
        "**/.git": true,
        "**/.svn": true,
        "**/.hg": true,
        "**/.DS_Store": true,
        "**/Thumbs.db": true,
        "**/.classpath": true,
        "**/.project": true,
        "**/.settings": true,
        "**/.factorypath": true
    },
    "filesAutoSaveAfterDelay": false,
    "editorInlayHintsEnabled": true,
    "editorParameterHintsEnabled": true,
    "searchExclude": {
        "**/node_modules": true,
        "**/bower_components": true,
        "**/*.code-search": true
    },
    "workbenchSettingsEditor": "ui"
}
cpptools version (native): 1.32.2.0
Current database path: C:\Users\huangqinjin\AppData\Local\Microsoft\vscode-cpptools\90d20250051651e1d809c1c7e0c52070\.BROWSE.VC.DB
Translation Unit Mappings:
[ C:\tmp\main.cpp - source TU]:
Translation Unit Configurations:
[ C:\tmp\main.cpp ]
    Process ID: 7256
    Memory Usage: 136 MB
    Compiler Path: C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
    Include Paths:
        system include: C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.44.35207\include
        system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\um
        system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\ucrt
        system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\shared
        system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\winrt
        system include: C:\Program Files (x86)\Windows Kits\10\Include\10.0.26100.0\cppwinrt
    Standard Version: ms_c++17
    IntelliSense Mode: windows-msvc-x64
Total Memory Usage: 136 MB

------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 5043


- The language server logging

loggingLevel: 6
LSP: (received - deferred) textDocument/didOpen: file:///c%3A/tmp/main.cpp
LSP: (received) cpptools/preinitialize (id: 1)
LSP: (invoked) cpptools/preinitialize (id: 1)
LSP: Sending response (id: 1)
LSP: Message ignored due to no registered handler: $/setTrace
LSP: (received) cpptools/initialize (id: 2)
LSP: (invoked) cpptools/initialize (id: 2)
cpptools version (TypeScript): 1.32.2
cpptools version (native): 1.32.2.0
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
LSP: Sending response (id: 2)
LSP: (received) cpptools/queryCompilerDefaults (id: 3)
LSP: (invoked) cpptools/queryCompilerDefaults (id: 3)
Compiler info database not connected - skipping load.
Compiler info database not connected - skipping load.
LSP: Sending response (id: 3)
Processed c_cpp_properties.json in 0.0191128s
LSP: (received - deferred) cpptools/didChangeVisibleTextEditors
LSP: (received) cpptools/queryCompilerDefaults (id: 4)
LSP: (invoked) cpptools/queryCompilerDefaults (id: 4)
LSP: (received) cpptools/didChangeCppProperties (id: 5)
Compiler info database not connected - skipping load.
LSP: (received) cpptools/didChangeSettings
LSP: (received) cpptools/didChangeSettings
Compiler info database not connected - skipping load.
LSP: (received) cpptools/didChangeSettings
LSP: (received) cpptools/didChangeSettings
LSP: (received - deferred) cpptools/didChangeVisibleTextEditors
LSP: (received - deferred) cpptools/didChangeVisibleTextEditors
LSP: Sending response (id: 4)
LSP: (invoked) cpptools/didChangeCppProperties (id: 5)
Code browsing service initialized
LSP: (received) cpptools/didChangeSettings
Populating file name cache...
Attempting to get defaults from C++ compiler in "compilerPath" property: 'C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe'
Attempting to get defaults from C compiler in "compilerPath" property: 'C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe'
  Folder: C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2022\BUILDTOOLS\VC\TOOLS\MSVC\14.44.35207\INCLUDE will be indexed
  Folder: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\CPPWINRT will be indexed
  Folder: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\SHARED will be indexed
  Folder: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UCRT will be indexed
  Folder: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UM will be indexed
  Folder: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\WINRT will be indexed
  Folder: C:\TMP will be indexed
LSP: (queued) textDocument/didOpen: file:///c%3A/tmp/main.cpp
LSP: (queued) cpptools/didChangeVisibleTextEditors
LSP: (queued) cpptools/didChangeVisibleTextEditors
LSP: (queued) cpptools/didChangeVisibleTextEditors
LSP: Sending response (id: 5)
LSP: (invoked) cpptools/didChangeSettings
Discovering files...
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) textDocument/didOpen: file:///c%3A/tmp/main.cpp
textDocument/didOpen: file:///c%3A/tmp/main.cpp
LSP: (invoked) cpptools/didChangeVisibleTextEditors
Intellisense update pending for: file:///c%3A/tmp/main.cpp
  Processing folder (recursive): C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\CPPWINRT
  Processing folder (non-recursive): C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2022\BUILDTOOLS\VC\TOOLS\MSVC\14.44.35207\INCLUDE
  Processing folder (recursive): C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\SHARED
  Processing folder (recursive): C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UCRT
  Processing folder (recursive): C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UM
IntelliSense update scheduled and TU acquisition started for: file:///c%3A/tmp/main.cpp
Done populating filename cache. Elapsed time: 604 ms
  Processing folder (recursive): C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\WINRT
LSP: (received) cpptools/getDocumentSymbols: file:///c%3A/tmp/main.cpp (id: 6)
Expanding recursive includes for: C:\TMP\MAIN.CPP
  Processing folder (recursive): C:\TMP
Done expanding recursive includes for: C:\TMP\MAIN.CPP
Reducing recursive includes for: C:\TMP\MAIN.CPP
Done reducing recursive includes for: C:\TMP\MAIN.CPP
sending compilation args for C:\tmp\main.cpp
  system include: C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2022\BUILDTOOLS\VC\TOOLS\MSVC\14.44.35207\INCLUDE
  system include: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UM
  system include: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\UCRT
  system include: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\SHARED
  system include: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\WINRT
  system include: C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.26100.0\CPPWINRT
  stdver: ms_c++17
  intelliSenseMode: windows-msvc-x64
LSP: (received) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 7)
LSP: (invoked) cpptools/getDocumentSymbols: file:///c%3A/tmp/main.cpp (id: 6)
LSP: (invoked) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 7)
LSP: Sending response (id: 7)
LSP: (received) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 8)
LSP: (invoked) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 8)
LSP: Sending response (id: 6)
LSP: Sending response (id: 8)
  Discovering files: 5043 file(s) processed
  0 file(s) removed from database
Done discovering files.
Parsing remaining files...
  Parsing: 0 files(s) processed
Done parsing remaining files.
LSP: $/cancelRequest (<unknown/completed>, id: 7)
LSP: (received) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 9)
LSP: (invoked) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 9)
LSP: $/cancelRequest (cpptools/getCodeActions, id: 9)
LSP: (received) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 10)
LSP: (invoked) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 10)
LSP: $/cancelRequest (cpptools/getCodeActions, id: 10)
LSP: (received) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 11)
LSP: (invoked) cpptools/getCodeActions: file:///c%3A/tmp/main.cpp (id: 11)
LSP: Sending response (id: 11)
Update IntelliSense time (sec): 0.953
LSP: (received) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 12)
LSP: (invoked) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 12)
LSP: Sending response (id: 12)
LSP: (received) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 13)
LSP: (invoked) cpptools/getFoldingRanges: file:///c%3A/tmp/main.cpp (id: 13)
LSP: Sending response (id: 13)

Other Extensions

No response

Additional context

No response